/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 03:13:36,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 03:13:36,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 03:13:36,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 03:13:36,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 03:13:36,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 03:13:36,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 03:13:36,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 03:13:36,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 03:13:36,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 03:13:36,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 03:13:36,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 03:13:36,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 03:13:36,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 03:13:36,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 03:13:36,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 03:13:36,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 03:13:36,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 03:13:36,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 03:13:36,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 03:13:36,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 03:13:36,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 03:13:36,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 03:13:36,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 03:13:36,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 03:13:36,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 03:13:36,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 03:13:36,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 03:13:36,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 03:13:36,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 03:13:36,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 03:13:36,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 03:13:36,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 03:13:36,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 03:13:36,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 03:13:36,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 03:13:36,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 03:13:36,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 03:13:36,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 03:13:36,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 03:13:36,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 03:13:36,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 03:13:36,428 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 03:13:36,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 03:13:36,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 03:13:36,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 03:13:36,432 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 03:13:36,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 03:13:36,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 03:13:36,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 03:13:36,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 03:13:36,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 03:13:36,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 03:13:36,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 03:13:36,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 03:13:36,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 03:13:36,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 03:13:36,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 03:13:36,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 03:13:36,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 03:13:36,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 03:13:36,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 03:13:36,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 03:13:36,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 03:13:36,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 03:13:36,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 03:13:36,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 03:13:36,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 03:13:36,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 03:13:36,439 INFO L138 SettingsManager]: * To the following directory=dump/ 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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 03:13:36,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 03:13:36,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 03:13:36,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 03:13:36,944 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 03:13:36,946 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 03:13:36,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2020-10-28 03:13:37,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab4c551e0/948ebfa526e341e087bf408ba4e0cacc/FLAG7484343c2 [2020-10-28 03:13:38,078 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 03:13:38,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2020-10-28 03:13:38,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab4c551e0/948ebfa526e341e087bf408ba4e0cacc/FLAG7484343c2 [2020-10-28 03:13:38,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab4c551e0/948ebfa526e341e087bf408ba4e0cacc [2020-10-28 03:13:38,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 03:13:38,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 03:13:38,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 03:13:38,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 03:13:38,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 03:13:38,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:13:38" (1/1) ... [2020-10-28 03:13:38,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b1ebf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:38, skipping insertion in model container [2020-10-28 03:13:38,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:13:38" (1/1) ... [2020-10-28 03:13:38,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 03:13:38,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 03:13:40,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:13:40,435 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 03:13:40,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:13:41,198 INFO L208 MainTranslator]: Completed translation [2020-10-28 03:13:41,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41 WrapperNode [2020-10-28 03:13:41,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 03:13:41,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 03:13:41,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 03:13:41,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 03:13:41,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... [2020-10-28 03:13:41,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 03:13:41,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 03:13:41,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 03:13:41,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 03:13:41,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 03:13:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 03:13:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 03:13:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 03:13:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 03:13:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-28 03:13:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-28 03:13:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-28 03:13:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-28 03:13:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-28 03:13:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-28 03:13:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-28 03:13:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-28 03:13:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-28 03:13:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 03:13:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2020-10-28 03:13:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-28 03:13:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 03:13:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 03:13:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 03:13:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 03:13:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 03:13:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 03:13:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 03:13:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 03:13:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 03:13:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 03:13:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 03:13:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 03:13:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2020-10-28 03:13:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2020-10-28 03:13:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-28 03:13:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-28 03:13:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-28 03:13:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-28 03:13:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-28 03:13:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-28 03:13:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-28 03:13:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_alloc_urbs [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_free_urbs [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_kill_urbs [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rcvbulk_callback [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_sndbulk_callback [2020-10-28 03:13:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_set [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_check_work [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_get_macaddr [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rx_submit [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_open [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_close [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx [2020-10-28 03:13:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx_timeout [2020-10-28 03:13:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_ethtool_op_get_link [2020-10-28 03:13:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_probe [2020-10-28 03:13:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_disconnect [2020-10-28 03:13:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_driver_init [2020-10-28 03:13:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_driver_exit [2020-10-28 03:13:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-28 03:13:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-28 03:13:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 03:13:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-28 03:13:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_2 [2020-10-28 03:13:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_3 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_4 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_5 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_6 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_8 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2020-10-28 03:13:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2020-10-28 03:13:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2020-10-28 03:13:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_13 [2020-10-28 03:13:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_14 [2020-10-28 03:13:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_15 [2020-10-28 03:13:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_16 [2020-10-28 03:13:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_17 [2020-10-28 03:13:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_19 [2020-10-28 03:13:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_20 [2020-10-28 03:13:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-28 03:13:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-28 03:13:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-28 03:13:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-28 03:13:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-28 03:13:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-28 03:13:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-28 03:13:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-28 03:13:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-28 03:13:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-28 03:13:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-28 03:13:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-28 03:13:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-28 03:13:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-28 03:13:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-28 03:13:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-28 03:13:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 03:13:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2020-10-28 03:13:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-28 03:13:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-28 03:13:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-28 03:13:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-10-28 03:13:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2020-10-28 03:13:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 03:13:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-28 03:13:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-10-28 03:13:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-28 03:13:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2020-10-28 03:13:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 03:13:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-28 03:13:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-28 03:13:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-28 03:13:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-10-28 03:13:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2020-10-28 03:13:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-28 03:13:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-28 03:13:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 03:13:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2020-10-28 03:13:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-10-28 03:13:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 03:13:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 03:13:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 03:13:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 03:13:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 03:13:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-28 03:13:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 03:13:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 03:13:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-28 03:13:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-28 03:13:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-28 03:13:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-28 03:13:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-28 03:13:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 03:13:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 03:13:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 03:13:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 03:13:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 03:13:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-28 03:13:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2020-10-28 03:13:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2020-10-28 03:13:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-28 03:13:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2020-10-28 03:13:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2020-10-28 03:13:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2020-10-28 03:13:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2020-10-28 03:13:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_15 [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 03:13:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_19 [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_20 [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_8 [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_2 [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_3 [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_4 [2020-10-28 03:13:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_5 [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_6 [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 03:13:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-28 03:13:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-28 03:13:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-28 03:13:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 03:13:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 03:13:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 03:13:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2020-10-28 03:13:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_14 [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_17 [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-28 03:13:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-28 03:13:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_13 [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_16 [2020-10-28 03:13:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rx_submit [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_alloc_urbs [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_free_urbs [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_kill_urbs [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rcvbulk_callback [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 03:13:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 03:13:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_sndbulk_callback [2020-10-28 03:13:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_set [2020-10-28 03:13:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_check_work [2020-10-28 03:13:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_get_macaddr [2020-10-28 03:13:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_open [2020-10-28 03:13:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_close [2020-10-28 03:13:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx [2020-10-28 03:13:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 03:13:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx_timeout [2020-10-28 03:13:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_ethtool_op_get_link [2020-10-28 03:13:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_probe [2020-10-28 03:13:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-28 03:13:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 03:13:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_disconnect [2020-10-28 03:13:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_driver_init [2020-10-28 03:13:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_driver_exit [2020-10-28 03:13:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-28 03:13:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-28 03:13:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 03:13:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 03:13:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 03:13:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-28 03:13:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-28 03:13:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-28 03:13:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 03:13:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-28 03:13:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 03:13:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 03:13:41,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 03:13:43,173 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 03:13:45,007 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-28 03:13:45,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 03:13:45,878 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 03:13:45,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:13:45 BoogieIcfgContainer [2020-10-28 03:13:45,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 03:13:45,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 03:13:45,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 03:13:45,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 03:13:45,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:13:38" (1/3) ... [2020-10-28 03:13:45,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3664c482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:13:45, skipping insertion in model container [2020-10-28 03:13:45,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:41" (2/3) ... [2020-10-28 03:13:45,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3664c482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:13:45, skipping insertion in model container [2020-10-28 03:13:45,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:13:45" (3/3) ... [2020-10-28 03:13:45,893 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2020-10-28 03:13:45,907 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 03:13:45,915 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 03:13:45,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 03:13:45,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 03:13:45,967 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 03:13:45,967 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 03:13:45,968 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 03:13:45,968 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 03:13:45,968 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 03:13:45,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 03:13:45,968 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 03:13:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states. [2020-10-28 03:13:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 03:13:46,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:13:46,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:13:46,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:13:46,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:13:46,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1205481922, now seen corresponding path program 1 times [2020-10-28 03:13:46,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:13:46,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259440917] [2020-10-28 03:13:46,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:13:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:47,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:50,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:50,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 03:13:50,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:13:50,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4216 [2020-10-28 03:13:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:13:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 03:13:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 03:13:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 03:13:52,727 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-28 03:13:52,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:13:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:52,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:52,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:52,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:13:52,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:52,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-28 03:13:52,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:13:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:53,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:13:53,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:13:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:53,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:13:53,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:53,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:13:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:53,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:13:53,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 03:13:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:13:53,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:13:53,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 03:13:53,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 03:13:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 03:13:53,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:13:53,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 03:13:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:13:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:13:53,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:13:53,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:13:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:53,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:53,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:53,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:13:53,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:13:53,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 03:13:53,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259440917] [2020-10-28 03:13:53,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:13:53,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 03:13:53,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45444435] [2020-10-28 03:13:53,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 03:13:53,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:13:53,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 03:13:53,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 03:13:53,302 INFO L87 Difference]: Start difference. First operand 866 states. Second operand 6 states. [2020-10-28 03:13:55,145 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 379 [2020-10-28 03:13:57,727 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 381 [2020-10-28 03:13:59,862 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 378 [2020-10-28 03:14:45,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:14:45,634 INFO L93 Difference]: Finished difference Result 3083 states and 4076 transitions. [2020-10-28 03:14:45,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 03:14:45,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-10-28 03:14:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:14:45,683 INFO L225 Difference]: With dead ends: 3083 [2020-10-28 03:14:45,688 INFO L226 Difference]: Without dead ends: 2211 [2020-10-28 03:14:45,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 03:14:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2020-10-28 03:14:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 1571. [2020-10-28 03:14:46,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1571 states. [2020-10-28 03:14:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 1888 transitions. [2020-10-28 03:14:46,469 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 1888 transitions. Word has length 53 [2020-10-28 03:14:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:14:46,470 INFO L481 AbstractCegarLoop]: Abstraction has 1571 states and 1888 transitions. [2020-10-28 03:14:46,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 03:14:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 1888 transitions. [2020-10-28 03:14:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 03:14:46,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:14:46,484 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:14:46,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 03:14:46,485 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:14:46,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:14:46,486 INFO L82 PathProgramCache]: Analyzing trace with hash -33972634, now seen corresponding path program 1 times [2020-10-28 03:14:46,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:14:46,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600404806] [2020-10-28 03:14:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:14:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:46,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:48,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:48,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 03:14:48,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:14:48,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2236 [2020-10-28 03:14:48,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:14:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 03:14:48,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:14:48,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:50,829 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-28 03:14:50,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:14:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:50,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:14:51,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-28 03:14:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:14:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:51,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:14:51,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:14:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:51,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:14:51,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:14:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:51,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:14:51,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 03:14:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:14:51,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:14:51,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 03:14:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:14:51,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 03:14:51,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:14:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:14:51,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 03:14:51,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:14:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:14:51,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:14:51,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:14:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:14:51,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 03:14:51,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:14:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:51,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:51,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:51,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:14:51,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:51,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:51,459 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 03:14:51,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600404806] [2020-10-28 03:14:51,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:14:51,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:14:51,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672535940] [2020-10-28 03:14:51,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:14:51,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:14:51,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:14:51,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:14:51,464 INFO L87 Difference]: Start difference. First operand 1571 states and 1888 transitions. Second operand 7 states. [2020-10-28 03:14:53,369 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 379 [2020-10-28 03:14:55,914 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 381 [2020-10-28 03:14:57,874 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 378 [2020-10-28 03:15:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:15:22,063 INFO L93 Difference]: Finished difference Result 2305 states and 3008 transitions. [2020-10-28 03:15:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 03:15:22,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-10-28 03:15:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:15:22,080 INFO L225 Difference]: With dead ends: 2305 [2020-10-28 03:15:22,080 INFO L226 Difference]: Without dead ends: 2290 [2020-10-28 03:15:22,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 03:15:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2020-10-28 03:15:22,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1571. [2020-10-28 03:15:22,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1571 states. [2020-10-28 03:15:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 1887 transitions. [2020-10-28 03:15:22,590 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 1887 transitions. Word has length 69 [2020-10-28 03:15:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:15:22,591 INFO L481 AbstractCegarLoop]: Abstraction has 1571 states and 1887 transitions. [2020-10-28 03:15:22,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:15:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 1887 transitions. [2020-10-28 03:15:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 03:15:22,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:15:22,594 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:15:22,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 03:15:22,595 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:15:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:15:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash -843319260, now seen corresponding path program 1 times [2020-10-28 03:15:22,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:15:22,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811641853] [2020-10-28 03:15:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:15:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:22,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:23,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:23,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 03:15:23,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:23,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1207 [2020-10-28 03:15:23,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:23,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:15:23,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:15:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 03:15:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:25,942 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-28 03:15:25,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:15:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:15:26,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-28 03:15:26,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:15:26,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:15:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:26,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:15:26,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:26,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:26,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:15:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:26,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:15:26,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:15:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:26,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:15:26,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:26,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:26,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 03:15:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:15:26,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:15:26,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:15:26,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 03:15:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:15:26,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 03:15:26,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:15:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:15:26,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:15:26,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 03:15:26,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:26,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:15:26,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:15:26,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:15:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:15:26,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:15:26,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:26,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:26,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:26,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:26,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:26,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:26,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:26,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:26,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:15:26,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:15:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 03:15:26,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811641853] [2020-10-28 03:15:26,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:15:26,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:15:26,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247756770] [2020-10-28 03:15:26,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:15:26,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:15:26,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:15:26,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:15:26,748 INFO L87 Difference]: Start difference. First operand 1571 states and 1887 transitions. Second operand 7 states. [2020-10-28 03:15:28,561 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 379 [2020-10-28 03:15:30,968 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 382 [2020-10-28 03:15:32,997 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 379 [2020-10-28 03:16:18,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:16:18,249 INFO L93 Difference]: Finished difference Result 5806 states and 7489 transitions. [2020-10-28 03:16:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 03:16:18,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-10-28 03:16:18,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:16:18,281 INFO L225 Difference]: With dead ends: 5806 [2020-10-28 03:16:18,281 INFO L226 Difference]: Without dead ends: 4251 [2020-10-28 03:16:18,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 03:16:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2020-10-28 03:16:19,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 3475. [2020-10-28 03:16:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3475 states. [2020-10-28 03:16:19,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 4331 transitions. [2020-10-28 03:16:19,321 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 4331 transitions. Word has length 69 [2020-10-28 03:16:19,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:16:19,321 INFO L481 AbstractCegarLoop]: Abstraction has 3475 states and 4331 transitions. [2020-10-28 03:16:19,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:16:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 4331 transitions. [2020-10-28 03:16:19,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 03:16:19,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:16:19,324 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:16:19,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 03:16:19,324 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:16:19,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:16:19,325 INFO L82 PathProgramCache]: Analyzing trace with hash -817949820, now seen corresponding path program 1 times [2020-10-28 03:16:19,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:16:19,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657460698] [2020-10-28 03:16:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:16:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:19,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:19,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:19,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 03:16:19,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:19,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-28 03:16:19,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:16:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 03:16:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,017 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-28 03:16:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:16:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:22,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-28 03:16:22,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:16:22,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:22,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:16:22,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:16:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:22,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 03:16:22,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:22,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:16:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:22,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:16:22,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 03:16:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:16:22,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:16:22,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:16:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 03:16:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:16:22,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 03:16:22,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:16:22,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:16:22,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:16:22,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:22,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:22,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:22,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:16:22,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:16:22,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:22,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:22,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:22,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:22,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:22,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:16:22,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:22,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 03:16:22,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657460698] [2020-10-28 03:16:22,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:16:22,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 03:16:22,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841259883] [2020-10-28 03:16:22,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 03:16:22,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:16:22,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 03:16:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 03:16:22,860 INFO L87 Difference]: Start difference. First operand 3475 states and 4331 transitions. Second operand 8 states. [2020-10-28 03:16:24,700 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 379 [2020-10-28 03:16:27,048 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 383 [2020-10-28 03:16:29,212 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 380 [2020-10-28 03:16:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:16:53,323 INFO L93 Difference]: Finished difference Result 4243 states and 5483 transitions. [2020-10-28 03:16:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 03:16:53,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-10-28 03:16:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:16:53,349 INFO L225 Difference]: With dead ends: 4243 [2020-10-28 03:16:53,350 INFO L226 Difference]: Without dead ends: 4238 [2020-10-28 03:16:53,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-28 03:16:53,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2020-10-28 03:16:54,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3474. [2020-10-28 03:16:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3474 states. [2020-10-28 03:16:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4329 transitions. [2020-10-28 03:16:54,538 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4329 transitions. Word has length 70 [2020-10-28 03:16:54,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:16:54,538 INFO L481 AbstractCegarLoop]: Abstraction has 3474 states and 4329 transitions. [2020-10-28 03:16:54,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 03:16:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4329 transitions. [2020-10-28 03:16:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 03:16:54,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:16:54,545 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:16:54,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 03:16:54,545 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:16:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:16:54,546 INFO L82 PathProgramCache]: Analyzing trace with hash -26819993, now seen corresponding path program 1 times [2020-10-28 03:16:54,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:16:54,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431796851] [2020-10-28 03:16:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:16:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:54,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:55,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:55,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 03:16:55,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:55,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-10-28 03:16:55,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:16:55,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 03:16:55,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,167 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-28 03:16:57,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:16:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:57,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-28 03:16:57,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:16:57,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:57,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:16:57,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:57,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:57,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:16:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:57,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:16:57,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:16:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:57,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:16:57,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 03:16:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:16:57,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:57,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:16:57,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 03:16:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:16:57,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 03:16:57,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:57,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:16:57,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:16:57,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:16:57,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:57,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:16:57,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:16:57,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:57,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:57,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:57,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:57,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:57,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:57,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 03:16:57,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431796851] [2020-10-28 03:16:57,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:16:57,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:16:57,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917709210] [2020-10-28 03:16:57,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:16:57,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:16:57,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:16:57,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:16:57,954 INFO L87 Difference]: Start difference. First operand 3474 states and 4329 transitions. Second operand 7 states. [2020-10-28 03:16:59,753 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 379 [2020-10-28 03:17:02,270 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 381 [2020-10-28 03:17:04,230 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 378 [2020-10-28 03:17:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:17:29,160 INFO L93 Difference]: Finished difference Result 4242 states and 5481 transitions. [2020-10-28 03:17:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 03:17:29,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-28 03:17:29,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:17:29,186 INFO L225 Difference]: With dead ends: 4242 [2020-10-28 03:17:29,186 INFO L226 Difference]: Without dead ends: 4237 [2020-10-28 03:17:29,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 03:17:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2020-10-28 03:17:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 3473. [2020-10-28 03:17:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3473 states. [2020-10-28 03:17:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4327 transitions. [2020-10-28 03:17:30,080 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4327 transitions. Word has length 71 [2020-10-28 03:17:30,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:17:30,081 INFO L481 AbstractCegarLoop]: Abstraction has 3473 states and 4327 transitions. [2020-10-28 03:17:30,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:17:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4327 transitions. [2020-10-28 03:17:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 03:17:30,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:17:30,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:17:30,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 03:17:30,085 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:17:30,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:17:30,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1266921945, now seen corresponding path program 1 times [2020-10-28 03:17:30,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:17:30,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852176837] [2020-10-28 03:17:30,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:17:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:30,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:30,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:30,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 03:17:30,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-28 03:17:30,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:17:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 03:17:30,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:32,660 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-28 03:17:32,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:17:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:32,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:17:32,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:17:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:17:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:17:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:17:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:17:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:17:33,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 03:17:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:17:33,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:17:33,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:17:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 03:17:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:17:33,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 03:17:33,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:17:33,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:17:33,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:17:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:17:33,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:17:33,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:17:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:17:33,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:17:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:17:33,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:17:33,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:17:33,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:17:33,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:17:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:17:33,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:17:33,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:17:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:17:33,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:17:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:17:33,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:17:33,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:17:33,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:17:33,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:17:33,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:17:33,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:17:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:17:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:17:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:17:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:17:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 03:17:33,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852176837] [2020-10-28 03:17:33,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:17:33,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:17:33,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780635117] [2020-10-28 03:17:33,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:17:33,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:17:33,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:17:33,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:17:33,315 INFO L87 Difference]: Start difference. First operand 3473 states and 4327 transitions. Second operand 7 states.