/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=BIGGEST --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 -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 03:17:08,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 03:17:08,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 03:17:08,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 03:17:08,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 03:17:08,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 03:17:08,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 03:17:08,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 03:17:08,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 03:17:08,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 03:17:08,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 03:17:08,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 03:17:08,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 03:17:08,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 03:17:08,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 03:17:08,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 03:17:08,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 03:17:08,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 03:17:08,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 03:17:08,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 03:17:08,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 03:17:08,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 03:17:08,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 03:17:08,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 03:17:08,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 03:17:08,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 03:17:08,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 03:17:08,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 03:17:08,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 03:17:08,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 03:17:08,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 03:17:08,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 03:17:08,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 03:17:08,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 03:17:08,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 03:17:08,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 03:17:08,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 03:17:08,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 03:17:08,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 03:17:08,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 03:17:08,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 03:17:08,493 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 [2020-10-13 03:17:08,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 03:17:08,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 03:17:08,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 03:17:08,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 03:17:08,540 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 03:17:08,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 03:17:08,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 03:17:08,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 03:17:08,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 03:17:08,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 03:17:08,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 03:17:08,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 03:17:08,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 03:17:08,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 03:17:08,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 03:17:08,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 03:17:08,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 03:17:08,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 03:17:08,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 03:17:08,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 03:17:08,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 03:17:08,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 03:17:08,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 03:17:08,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 03:17:08,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 03:17:08,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 03:17:08,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 03:17:08,547 INFO L138 SettingsManager]: * To the following directory=dump/ 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 03:17:08,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 03:17:08,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 03:17:08,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 03:17:08,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 03:17:08,900 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 03:17:08,902 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2020-10-13 03:17:08,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5fe6ebdb/adfbfb27789948ae9beed930139cfbc8/FLAG2556a2b25 [2020-10-13 03:17:09,829 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 03:17:09,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2020-10-13 03:17:09,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5fe6ebdb/adfbfb27789948ae9beed930139cfbc8/FLAG2556a2b25 [2020-10-13 03:17:10,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5fe6ebdb/adfbfb27789948ae9beed930139cfbc8 [2020-10-13 03:17:10,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 03:17:10,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 03:17:10,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 03:17:10,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 03:17:10,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 03:17:10,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:17:10" (1/1) ... [2020-10-13 03:17:10,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f457a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:10, skipping insertion in model container [2020-10-13 03:17:10,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:17:10" (1/1) ... [2020-10-13 03:17:10,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 03:17:10,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 03:17:12,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 03:17:12,996 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 03:17:13,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 03:17:13,600 INFO L208 MainTranslator]: Completed translation [2020-10-13 03:17:13,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13 WrapperNode [2020-10-13 03:17:13,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 03:17:13,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 03:17:13,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 03:17:13,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 03:17:13,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (1/1) ... [2020-10-13 03:17:13,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 03:17:13,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 03:17:13,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 03:17:13,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 03:17:13,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (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 [2020-10-13 03:17:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 03:17:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 03:17:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-13 03:17:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-13 03:17:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 03:17:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 03:17:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 03:17:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-13 03:17:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-13 03:17:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 03:17:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 03:17:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 03:17:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 03:17:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 03:17:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-13 03:17:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2020-10-13 03:17:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 03:17:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 03:17:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 03:17:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 03:17:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2020-10-13 03:17:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2020-10-13 03:17:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-10-13 03:17:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-13 03:17:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-13 03:17:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-13 03:17:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-13 03:17:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-13 03:17:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2020-10-13 03:17:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2020-10-13 03:17:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2020-10-13 03:17:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2020-10-13 03:17:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-10-13 03:17:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2020-10-13 03:17:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2020-10-13 03:17:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2020-10-13 03:17:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-13 03:17:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wiphy_dev [2020-10-13 03:17:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_DEV [2020-10-13 03:17:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_cb [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_dummy_cb [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_init_urbs [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2020-10-13 03:17:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_lm87_chksum [2020-10-13 03:17:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_lm87 [2020-10-13 03:17:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_net2280 [2020-10-13 03:17:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2020-10-13 03:17:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2020-10-13 03:17:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2020-10-13 03:17:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_device_reset [2020-10-13 03:17:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_firmware_reset_3887 [2020-10-13 03:17:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_3887 [2020-10-13 03:17:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_net2280 [2020-10-13 03:17:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2020-10-13 03:17:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_start_ops [2020-10-13 03:17:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware_cb [2020-10-13 03:17:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware [2020-10-13 03:17:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_probe [2020-10-13 03:17:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2020-10-13 03:17:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2020-10-13 03:17:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2020-10-13 03:17:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_suspend [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_init [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_exit [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-13 03:17:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2020-10-13 03:17:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2020-10-13 03:17:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2020-10-13 03:17:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-13 03:17:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-13 03:17:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-10-13 03:17:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 03:17:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 03:17:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 03:17:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 03:17:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-10-13 03:17:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-10-13 03:17:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2020-10-13 03:17:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-10-13 03:17:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 03:17:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 03:17:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2020-10-13 03:17:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev_of_p54u_priv [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev_of_p54u_priv [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev_of_p54u_priv [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev_of_p54u_priv [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev_of_p54u_priv [2020-10-13 03:17:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev_of_p54u_priv [2020-10-13 03:17:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev_of_p54u_priv [2020-10-13 03:17:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev_of_p54u_priv [2020-10-13 03:17:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev_of_p54u_priv [2020-10-13 03:17:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev_of_p54u_priv [2020-10-13 03:17:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev_of_p54u_priv [2020-10-13 03:17:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-13 03:17:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_restart_hw [2020-10-13 03:17:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-13 03:17:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2020-10-13 03:17:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 03:17:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 03:17:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 03:17:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 03:17:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_init_common [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_parse_firmware [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_read_eeprom [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_register_common [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_rx [2020-10-13 03:17:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_unregister_common [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware_nowait [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-13 03:17:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2020-10-13 03:17:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interrupt_msg [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2020-10-13 03:17:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 03:17:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 03:17:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 03:17:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 03:17:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-13 03:17:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 03:17:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-13 03:17:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-13 03:17:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 03:17:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 03:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2020-10-13 03:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-10-13 03:17:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2020-10-13 03:17:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-10-13 03:17:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 03:17:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 03:17:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 03:17:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev_of_p54u_priv [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev_of_p54u_priv [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-13 03:17:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2020-10-13 03:17:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 03:17:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-13 03:17:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 03:17:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-13 03:17:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interrupt_msg [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-13 03:17:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware_nowait [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2020-10-13 03:17:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-13 03:17:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure set_wiphy_dev [2020-10-13 03:17:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_DEV [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_restart_hw [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_rx [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_parse_firmware [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_read_eeprom [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_init_common [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_register_common [2020-10-13 03:17:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54_unregister_common [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_cb [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_dummy_cb [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_init_urbs [2020-10-13 03:17:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2020-10-13 03:17:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_lm87_chksum [2020-10-13 03:17:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_lm87 [2020-10-13 03:17:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_net2280 [2020-10-13 03:17:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2020-10-13 03:17:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2020-10-13 03:17:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2020-10-13 03:17:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_device_reset [2020-10-13 03:17:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_firmware_reset_3887 [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_3887 [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_net2280 [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_start_ops [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-13 03:17:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware_cb [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_probe [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2020-10-13 03:17:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_suspend [2020-10-13 03:17:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_init [2020-10-13 03:17:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_exit [2020-10-13 03:17:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 03:17:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 03:17:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 03:17:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-10-13 03:17:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-10-13 03:17:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2020-10-13 03:17:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2020-10-13 03:17:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev_of_p54u_priv [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev_of_p54u_priv [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev_of_p54u_priv [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev_of_p54u_priv [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev_of_p54u_priv [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev_of_p54u_priv [2020-10-13 03:17:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev_of_p54u_priv [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev_of_p54u_priv [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev_of_p54u_priv [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 03:17:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 03:17:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 03:17:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 03:17:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 03:17:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 03:17:15,008 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 03:17:59,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 03:17:59,274 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 03:17:59,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:17:59 BoogieIcfgContainer [2020-10-13 03:17:59,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 03:17:59,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 03:17:59,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 03:17:59,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 03:17:59,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 03:17:10" (1/3) ... [2020-10-13 03:17:59,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399de489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:17:59, skipping insertion in model container [2020-10-13 03:17:59,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:17:13" (2/3) ... [2020-10-13 03:17:59,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399de489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:17:59, skipping insertion in model container [2020-10-13 03:17:59,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:17:59" (3/3) ... [2020-10-13 03:17:59,301 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2020-10-13 03:17:59,312 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 03:17:59,323 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 03:17:59,338 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 03:17:59,372 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 03:17:59,373 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 03:17:59,373 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 03:17:59,373 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 03:17:59,373 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 03:17:59,373 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 03:17:59,373 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 03:17:59,374 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 03:17:59,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states. [2020-10-13 03:17:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-13 03:17:59,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:17:59,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 03:17:59,444 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:17:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:17:59,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1359554777, now seen corresponding path program 1 times [2020-10-13 03:17:59,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:17:59,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121824280] [2020-10-13 03:17:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:18:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:00,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:00,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:05,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:05,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 03:18:05,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 03:18:05,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5372 [2020-10-13 03:18:05,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 03:18:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 03:18:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 03:18:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 03:18:06,262 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:18:06,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:18:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:06,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:06,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:06,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:06,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-13 03:18:06,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:06,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:18:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:06,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:06,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:18:07,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:18:07,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 03:18:07,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:18:07,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:07,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 03:18:07,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:18:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:18:07,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:18:07,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 03:18:07,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:18:07,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:18:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:18:07,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 03:18:07,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:18:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:18:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 03:18:07,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 03:18:07,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 03:18:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 03:18:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 03:18:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:07,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:18:07,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 03:18:07,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 03:18:07,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 03:18:07,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:07,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 03:18:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:18:07,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 03:18:07,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 03:18:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:18:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:18:07,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 03:18:07,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:07,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:07,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:07,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:07,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 03:18:07,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:07,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:18:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 03:18:07,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121824280] [2020-10-13 03:18:07,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 03:18:07,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 03:18:07,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297213935] [2020-10-13 03:18:07,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 03:18:07,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:18:07,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 03:18:07,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 03:18:07,960 INFO L87 Difference]: Start difference. First operand 1331 states. Second operand 11 states. [2020-10-13 03:18:10,899 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2020-10-13 03:18:11,431 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-13 03:18:11,963 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2020-10-13 03:18:12,561 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-13 03:18:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:18:23,360 INFO L93 Difference]: Finished difference Result 1962 states and 2649 transitions. [2020-10-13 03:18:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 03:18:23,361 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2020-10-13 03:18:23,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:18:23,388 INFO L225 Difference]: With dead ends: 1962 [2020-10-13 03:18:23,388 INFO L226 Difference]: Without dead ends: 1043 [2020-10-13 03:18:23,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-13 03:18:23,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-10-13 03:18:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 896. [2020-10-13 03:18:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-10-13 03:18:23,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1172 transitions. [2020-10-13 03:18:23,635 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1172 transitions. Word has length 59 [2020-10-13 03:18:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:18:23,635 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1172 transitions. [2020-10-13 03:18:23,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 03:18:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1172 transitions. [2020-10-13 03:18:23,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 03:18:23,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:18:23,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 03:18:23,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 03:18:23,641 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:18:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:18:23,641 INFO L82 PathProgramCache]: Analyzing trace with hash 657392795, now seen corresponding path program 1 times [2020-10-13 03:18:23,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:18:23,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305135471] [2020-10-13 03:18:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:18:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:24,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:24,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:29,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:29,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 03:18:29,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:18:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5399 [2020-10-13 03:18:29,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 03:18:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 03:18:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 03:18:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:29,882 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:18:29,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:18:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:30,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-13 03:18:30,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:30,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:30,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:30,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:30,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:18:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:18:30,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 03:18:30,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:30,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:30,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:30,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:30,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:30,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:30,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 03:18:30,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:30,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:30,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:18:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:30,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:18:30,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 03:18:30,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:30,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:18:30,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:18:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:18:30,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 03:18:30,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:30,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:30,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:30,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:30,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:18:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 03:18:30,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-13 03:18:30,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 03:18:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 03:18:30,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 03:18:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:30,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:30,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:30,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:30,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 03:18:30,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:30,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 03:18:30,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:30,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 03:18:30,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:30,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 03:18:30,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:31,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 03:18:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:31,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:31,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:31,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:18:31,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:31,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 03:18:31,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:31,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:31,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 03:18:31,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:31,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:31,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:18:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:31,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:31,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:31,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:18:31,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 03:18:31,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:31,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:31,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:31,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:31,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 03:18:31,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:31,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:31,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 03:18:31,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305135471] [2020-10-13 03:18:31,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 03:18:31,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 03:18:31,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226616150] [2020-10-13 03:18:31,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 03:18:31,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:18:31,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 03:18:31,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-13 03:18:31,169 INFO L87 Difference]: Start difference. First operand 896 states and 1172 transitions. Second operand 12 states. [2020-10-13 03:18:34,067 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 03:18:34,592 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-13 03:18:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:18:48,798 INFO L93 Difference]: Finished difference Result 1928 states and 2539 transitions. [2020-10-13 03:18:48,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 03:18:48,798 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 60 [2020-10-13 03:18:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:18:48,807 INFO L225 Difference]: With dead ends: 1928 [2020-10-13 03:18:48,807 INFO L226 Difference]: Without dead ends: 1044 [2020-10-13 03:18:48,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2020-10-13 03:18:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-13 03:18:48,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 897. [2020-10-13 03:18:48,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-10-13 03:18:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1173 transitions. [2020-10-13 03:18:48,965 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1173 transitions. Word has length 60 [2020-10-13 03:18:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:18:48,966 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1173 transitions. [2020-10-13 03:18:48,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 03:18:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1173 transitions. [2020-10-13 03:18:48,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 03:18:48,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:18:48,968 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 03:18:48,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 03:18:48,969 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:18:48,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:18:48,969 INFO L82 PathProgramCache]: Analyzing trace with hash -528278505, now seen corresponding path program 2 times [2020-10-13 03:18:48,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:18:48,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764832032] [2020-10-13 03:18:48,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:18:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:49,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:54,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:54,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 03:18:54,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:18:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5671 [2020-10-13 03:18:54,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:54,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 03:18:54,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 03:18:54,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 03:18:54,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:55,424 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:18:55,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:18:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:55,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:55,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:55,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:55,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:55,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-13 03:18:55,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:18:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:18:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 03:18:56,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:56,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 03:18:56,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:18:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:18:56,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 03:18:56,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:18:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:18:56,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 03:18:56,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:18:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 03:18:56,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 03:18:56,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 03:18:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 03:18:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 03:18:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 03:18:56,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-13 03:18:56,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 03:18:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 03:18:56,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 03:18:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:18:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 03:18:56,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 03:18:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:18:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:18:56,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 03:18:56,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:18:56,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:18:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:18:56,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:18:56,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:18:56,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:18:56,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:18:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 03:18:56,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:18:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:18:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:18:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:18:56,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:18:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 03:18:56,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764832032] [2020-10-13 03:18:56,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 03:18:56,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 03:18:56,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762448396] [2020-10-13 03:18:56,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 03:18:56,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:18:56,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 03:18:56,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-13 03:18:56,839 INFO L87 Difference]: Start difference. First operand 897 states and 1173 transitions. Second operand 13 states. [2020-10-13 03:18:59,691 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 03:19:00,218 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-13 03:19:11,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:19:11,874 INFO L93 Difference]: Finished difference Result 1930 states and 2541 transitions. [2020-10-13 03:19:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 03:19:11,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2020-10-13 03:19:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:19:11,887 INFO L225 Difference]: With dead ends: 1930 [2020-10-13 03:19:11,888 INFO L226 Difference]: Without dead ends: 1045 [2020-10-13 03:19:11,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2020-10-13 03:19:11,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-13 03:19:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 898. [2020-10-13 03:19:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-13 03:19:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1174 transitions. [2020-10-13 03:19:12,030 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1174 transitions. Word has length 61 [2020-10-13 03:19:12,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:19:12,031 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1174 transitions. [2020-10-13 03:19:12,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 03:19:12,031 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1174 transitions. [2020-10-13 03:19:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 03:19:12,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:19:12,033 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 03:19:12,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 03:19:12,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:19:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:19:12,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1370616859, now seen corresponding path program 3 times [2020-10-13 03:19:12,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:19:12,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309038133] [2020-10-13 03:19:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:19:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:12,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:12,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:17,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:17,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-13 03:19:17,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:19:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5537 [2020-10-13 03:19:17,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 03:19:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 03:19:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 03:19:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:18,278 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:19:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:19:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:18,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:18,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:18,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:18,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:18,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-13 03:19:18,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:18,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:18,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:18,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:18,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:18,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:19:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:18,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:18,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:18,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:18,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:18,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:18,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 03:19:18,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:18,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:18,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:19:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:18,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:18,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:18,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:19:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 03:19:18,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:18,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:19:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:18,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:18,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:18,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:19:18,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:18,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 03:19:18,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:18,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:18,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:18,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:18,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:19:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:19,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:19,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 03:19:19,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 03:19:19,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 03:19:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 03:19:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 03:19:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:19,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:19,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:19,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:19,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 03:19:19,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:19,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 03:19:19,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:19,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 03:19:19,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:19,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 03:19:19,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:19,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 03:19:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:19,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 03:19:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:19,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:19,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:19:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:19,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:19,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:19,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:19:19,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 03:19:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:19,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:19,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:19,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 03:19:19,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309038133] [2020-10-13 03:19:19,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 03:19:19,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 03:19:19,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713077155] [2020-10-13 03:19:19,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 03:19:19,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:19:19,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 03:19:19,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-13 03:19:19,394 INFO L87 Difference]: Start difference. First operand 898 states and 1174 transitions. Second operand 14 states. [2020-10-13 03:19:22,217 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 03:19:22,737 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-13 03:19:35,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:19:35,863 INFO L93 Difference]: Finished difference Result 1932 states and 2543 transitions. [2020-10-13 03:19:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 03:19:35,864 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-10-13 03:19:35,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:19:35,878 INFO L225 Difference]: With dead ends: 1932 [2020-10-13 03:19:35,879 INFO L226 Difference]: Without dead ends: 1046 [2020-10-13 03:19:35,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2020-10-13 03:19:35,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-13 03:19:36,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 899. [2020-10-13 03:19:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-13 03:19:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1175 transitions. [2020-10-13 03:19:36,130 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1175 transitions. Word has length 62 [2020-10-13 03:19:36,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:19:36,131 INFO L479 AbstractCegarLoop]: Abstraction has 899 states and 1175 transitions. [2020-10-13 03:19:36,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 03:19:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1175 transitions. [2020-10-13 03:19:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 03:19:36,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:19:36,135 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 03:19:36,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 03:19:36,135 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:19:36,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:19:36,136 INFO L82 PathProgramCache]: Analyzing trace with hash 106830999, now seen corresponding path program 4 times [2020-10-13 03:19:36,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:19:36,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956185469] [2020-10-13 03:19:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:19:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:36,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:38,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:41,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:41,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 03:19:41,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:19:41,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5206 [2020-10-13 03:19:41,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 03:19:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 03:19:41,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:42,135 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:19:42,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:19:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:42,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:42,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:42,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:42,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:42,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-10-13 03:19:42,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 03:19:42,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:42,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:19:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:19:43,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 03:19:43,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 03:19:43,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:43,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:19:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:19:43,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:19:43,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:19:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 03:19:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:19:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:19:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 03:19:43,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:19:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 03:19:43,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 03:19:43,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 03:19:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:19:43,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 03:19:43,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:19:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:19:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:19:43,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 03:19:43,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:43,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:43,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:43,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:43,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:43,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:43,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:43,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 03:19:43,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:43,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 03:19:43,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956185469] [2020-10-13 03:19:43,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 03:19:43,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 03:19:43,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783306795] [2020-10-13 03:19:43,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 03:19:43,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:19:43,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 03:19:43,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 03:19:43,304 INFO L87 Difference]: Start difference. First operand 899 states and 1175 transitions. Second operand 8 states. [2020-10-13 03:19:45,876 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 300 [2020-10-13 03:19:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:19:52,250 INFO L93 Difference]: Finished difference Result 1048 states and 1380 transitions. [2020-10-13 03:19:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 03:19:52,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-13 03:19:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:19:52,259 INFO L225 Difference]: With dead ends: 1048 [2020-10-13 03:19:52,259 INFO L226 Difference]: Without dead ends: 1045 [2020-10-13 03:19:52,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-10-13 03:19:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-13 03:19:52,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 898. [2020-10-13 03:19:52,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-13 03:19:52,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1173 transitions. [2020-10-13 03:19:52,387 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1173 transitions. Word has length 63 [2020-10-13 03:19:52,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:19:52,387 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1173 transitions. [2020-10-13 03:19:52,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 03:19:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1173 transitions. [2020-10-13 03:19:52,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 03:19:52,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:19:52,389 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 03:19:52,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 03:19:52,390 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:19:52,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:19:52,390 INFO L82 PathProgramCache]: Analyzing trace with hash -983780497, now seen corresponding path program 1 times [2020-10-13 03:19:52,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:19:52,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130972328] [2020-10-13 03:19:52,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:19:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:52,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:53,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:54,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2327 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 03:19:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:55,629 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:19:55,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:19:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 03:19:56,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:56,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:19:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:19:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 03:19:56,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 03:19:56,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 03:19:56,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:56,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:56,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:19:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:19:56,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 03:19:56,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:56,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:19:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:19:56,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 03:19:56,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:56,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 03:19:56,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:19:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:19:56,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 03:19:56,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:56,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:19:56,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 03:19:56,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 03:19:56,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:56,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:56,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 03:19:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:19:56,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 03:19:56,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:19:56,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:19:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:19:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:19:56,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 03:19:56,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:19:56,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:19:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:19:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:19:56,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:19:56,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:19:56,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:19:56,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 03:19:56,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:19:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:19:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:19:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:19:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:19:56,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 03:19:56,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130972328] [2020-10-13 03:19:56,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 03:19:56,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 03:19:56,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814543762] [2020-10-13 03:19:56,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 03:19:56,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:19:56,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 03:19:56,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 03:19:56,989 INFO L87 Difference]: Start difference. First operand 898 states and 1173 transitions. Second operand 8 states. [2020-10-13 03:19:59,617 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 300 [2020-10-13 03:20:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:20:05,998 INFO L93 Difference]: Finished difference Result 1047 states and 1378 transitions. [2020-10-13 03:20:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 03:20:05,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-13 03:20:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:20:06,006 INFO L225 Difference]: With dead ends: 1047 [2020-10-13 03:20:06,007 INFO L226 Difference]: Without dead ends: 1044 [2020-10-13 03:20:06,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-10-13 03:20:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-13 03:20:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 897. [2020-10-13 03:20:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-10-13 03:20:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1171 transitions. [2020-10-13 03:20:06,146 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1171 transitions. Word has length 64 [2020-10-13 03:20:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:20:06,146 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1171 transitions. [2020-10-13 03:20:06,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 03:20:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1171 transitions. [2020-10-13 03:20:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 03:20:06,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:20:06,148 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-10-13 03:20:06,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 03:20:06,148 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:20:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:20:06,148 INFO L82 PathProgramCache]: Analyzing trace with hash -432993638, now seen corresponding path program 1 times [2020-10-13 03:20:06,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:20:06,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269986683] [2020-10-13 03:20:06,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:20:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:06,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:06,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:07,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:07,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 03:20:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:20:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1718 [2020-10-13 03:20:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 03:20:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 03:20:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:08,848 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:20:08,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:20:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:20:09,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-13 03:20:09,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 03:20:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:20:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:20:09,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 03:20:09,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:09,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 03:20:09,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:20:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:09,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:20:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:20:09,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 03:20:09,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:09,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:20:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:20:09,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:20:09,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 03:20:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:20:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:20:09,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:20:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 03:20:09,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 03:20:09,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:09,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:09,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 03:20:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:20:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 03:20:09,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:20:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:20:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:20:09,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 03:20:09,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:20:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:09,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 03:20:09,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269986683] [2020-10-13 03:20:09,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 03:20:09,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 03:20:09,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321614488] [2020-10-13 03:20:09,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 03:20:09,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:20:09,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 03:20:09,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 03:20:09,860 INFO L87 Difference]: Start difference. First operand 897 states and 1171 transitions. Second operand 8 states. [2020-10-13 03:20:12,423 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 300 [2020-10-13 03:20:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:20:23,020 INFO L93 Difference]: Finished difference Result 1046 states and 1376 transitions. [2020-10-13 03:20:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 03:20:23,021 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-13 03:20:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:20:23,027 INFO L225 Difference]: With dead ends: 1046 [2020-10-13 03:20:23,028 INFO L226 Difference]: Without dead ends: 1043 [2020-10-13 03:20:23,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-10-13 03:20:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-10-13 03:20:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 896. [2020-10-13 03:20:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-10-13 03:20:23,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1169 transitions. [2020-10-13 03:20:23,177 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1169 transitions. Word has length 65 [2020-10-13 03:20:23,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:20:23,177 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1169 transitions. [2020-10-13 03:20:23,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 03:20:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1169 transitions. [2020-10-13 03:20:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 03:20:23,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:20:23,179 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-10-13 03:20:23,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 03:20:23,179 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:20:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:20:23,179 INFO L82 PathProgramCache]: Analyzing trace with hash -538465326, now seen corresponding path program 1 times [2020-10-13 03:20:23,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:20:23,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273945748] [2020-10-13 03:20:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:20:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:23,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:24,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:27,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:27,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-13 03:20:27,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 03:20:27,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4595 [2020-10-13 03:20:27,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 03:20:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 03:20:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 03:20:27,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:28,485 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2020-10-13 03:20:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:20:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:28,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:20:29,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-13 03:20:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 03:20:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:20:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 03:20:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:20:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:20:29,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:20:29,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:29,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 03:20:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 03:20:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 03:20:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 03:20:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:20:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:20:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 03:20:29,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 03:20:29,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:29,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 03:20:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 03:20:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 03:20:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 03:20:29,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 03:20:29,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 03:20:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 03:20:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:29,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:29,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 03:20:29,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 03:20:29,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 03:20:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 03:20:29,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 03:20:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 03:20:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 03:20:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 03:20:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 03:20:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 03:20:29,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273945748] [2020-10-13 03:20:29,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 03:20:29,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 03:20:29,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508355172] [2020-10-13 03:20:29,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 03:20:29,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 03:20:29,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 03:20:29,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 03:20:29,503 INFO L87 Difference]: Start difference. First operand 896 states and 1169 transitions. Second operand 8 states. [2020-10-13 03:20:32,131 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 300 [2020-10-13 03:20:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 03:20:45,767 INFO L93 Difference]: Finished difference Result 2920 states and 3857 transitions. [2020-10-13 03:20:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 03:20:45,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-13 03:20:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 03:20:45,781 INFO L225 Difference]: With dead ends: 2920 [2020-10-13 03:20:45,782 INFO L226 Difference]: Without dead ends: 2024 [2020-10-13 03:20:45,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2020-10-13 03:20:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2020-10-13 03:20:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 1762. [2020-10-13 03:20:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-10-13 03:20:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2315 transitions. [2020-10-13 03:20:46,087 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2315 transitions. Word has length 66 [2020-10-13 03:20:46,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 03:20:46,088 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2315 transitions. [2020-10-13 03:20:46,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 03:20:46,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2315 transitions. [2020-10-13 03:20:46,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-13 03:20:46,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 03:20:46,099 INFO L422 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 03:20:46,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 03:20:46,099 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 03:20:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 03:20:46,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1084810838, now seen corresponding path program 1 times [2020-10-13 03:20:46,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 03:20:46,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986991127] [2020-10-13 03:20:46,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 03:20:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 03:20:46,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 03:20:46,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking...