/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=NARROWEST --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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 19:33:04,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 19:33:04,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 19:33:04,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 19:33:04,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 19:33:04,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 19:33:04,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 19:33:04,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 19:33:04,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 19:33:04,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 19:33:04,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 19:33:04,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 19:33:04,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 19:33:04,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 19:33:04,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 19:33:04,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 19:33:04,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 19:33:04,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 19:33:04,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 19:33:04,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 19:33:04,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 19:33:04,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 19:33:04,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 19:33:04,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 19:33:04,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 19:33:04,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 19:33:04,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 19:33:04,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 19:33:04,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 19:33:04,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 19:33:04,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 19:33:04,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 19:33:04,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 19:33:04,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 19:33:04,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 19:33:04,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 19:33:04,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 19:33:04,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 19:33:04,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 19:33:04,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 19:33:04,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 19:33:04,530 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 19:33:04,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 19:33:04,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 19:33:04,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 19:33:04,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 19:33:04,570 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 19:33:04,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 19:33:04,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 19:33:04,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 19:33:04,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 19:33:04,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 19:33:04,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 19:33:04,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 19:33:04,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 19:33:04,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 19:33:04,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 19:33:04,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 19:33:04,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 19:33:04,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 19:33:04,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:33:04,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 19:33:04,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 19:33:04,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 19:33:04,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 19:33:04,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 19:33:04,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 19:33:04,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 19:33:04,575 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 19:33:04,575 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 19:33:04,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 19:33:04,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 19:33:04,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 19:33:04,899 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 19:33:04,899 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 19:33:04,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-13 19:33:04,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c7fa3989/1b4f0f7e3f6c4d87892976265c051791/FLAG0f5859322 [2020-10-13 19:33:05,739 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 19:33:05,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-13 19:33:05,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c7fa3989/1b4f0f7e3f6c4d87892976265c051791/FLAG0f5859322 [2020-10-13 19:33:06,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c7fa3989/1b4f0f7e3f6c4d87892976265c051791 [2020-10-13 19:33:06,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 19:33:06,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 19:33:06,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 19:33:06,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 19:33:06,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 19:33:06,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:33:06" (1/1) ... [2020-10-13 19:33:06,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa2a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:06, skipping insertion in model container [2020-10-13 19:33:06,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:33:06" (1/1) ... [2020-10-13 19:33:06,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 19:33:06,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 19:33:08,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:33:08,304 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 19:33:08,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:33:09,077 INFO L208 MainTranslator]: Completed translation [2020-10-13 19:33:09,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09 WrapperNode [2020-10-13 19:33:09,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 19:33:09,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 19:33:09,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 19:33:09,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 19:33:09,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (1/1) ... [2020-10-13 19:33:09,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 19:33:09,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 19:33:09,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 19:33:09,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 19:33:09,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (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 19:33:09,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 19:33:09,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 19:33:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-13 19:33:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-13 19:33:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-13 19:33:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-13 19:33:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 19:33:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-13 19:33:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 19:33:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 19:33:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 19:33:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 19:33:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 19:33:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 19:33:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-10-13 19:33:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-10-13 19:33:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-10-13 19:33:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2020-10-13 19:33:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-10-13 19:33:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-10-13 19:33:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-13 19:33:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2020-10-13 19:33:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 19:33:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 19:33:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 19:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_random_addr [2020-10-13 19:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2020-10-13 19:33:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-10-13 19:33:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure q922_to_dlci [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dlci_to_q922 [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure find_pvc [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pvc [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_is_used [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_carrier [2020-10-13 19:33:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_unused_pvcs [2020-10-13 19:33:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_p [2020-10-13 19:33:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_hard_header [2020-10-13 19:33:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_open [2020-10-13 19:33:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_close [2020-10-13 19:33:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_ioctl [2020-10-13 19:33:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_xmit [2020-10-13 19:33:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_log_dlci_active [2020-10-13 19:33:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_nextseq [2020-10-13 19:33:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_send [2020-10-13 19:33:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_set_link_state [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_timer [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_recv [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_rx [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_start [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_stop [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_close [2020-10-13 19:33:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_setup [2020-10-13 19:33:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_add_pvc [2020-10-13 19:33:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_del_pvc [2020-10-13 19:33:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_destroy [2020-10-13 19:33:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_ioctl [2020-10-13 19:33:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-10-13 19:33:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-10-13 19:33:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_3 [2020-10-13 19:33:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2020-10-13 19:33:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2020-10-13 19:33:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_2 [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 19:33:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 19:33:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 19:33:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_14 [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 19:33:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 19:33:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 19:33:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 19:33:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 19:33:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 19:33:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 19:33:09,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 19:33:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 19:33:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 19:33:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 19:33:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 19:33:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 19:33:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 19:33:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-13 19:33:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2020-10-13 19:33:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-10-13 19:33:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-10-13 19:33:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2020-10-13 19:33:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2020-10-13 19:33:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2020-10-13 19:33:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-10-13 19:33:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-13 19:33:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2020-10-13 19:33:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2020-10-13 19:33:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2020-10-13 19:33:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_3 [2020-10-13 19:33:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_3 [2020-10-13 19:33:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2020-10-13 19:33:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-10-13 19:33:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-10-13 19:33:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 19:33:09,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-13 19:33:09,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-13 19:33:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-10-13 19:33:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2020-10-13 19:33:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-10-13 19:33:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-10-13 19:33:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2020-10-13 19:33:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-10-13 19:33:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 19:33:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 19:33:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 19:33:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2020-10-13 19:33:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-10-13 19:33:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2020-10-13 19:33:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 19:33:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 19:33:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 19:33:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 19:33:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 19:33:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 19:33:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-13 19:33:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-13 19:33:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 19:33:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_14 [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2020-10-13 19:33:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 19:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 19:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 19:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 19:33:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 19:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 19:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 19:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 19:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2020-10-13 19:33:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 19:33:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 19:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-10-13 19:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-10-13 19:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2020-10-13 19:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-10-13 19:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-10-13 19:33:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-10-13 19:33:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 19:33:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 19:33:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_3 [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2020-10-13 19:33:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_2 [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2020-10-13 19:33:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2020-10-13 19:33:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-10-13 19:33:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure eth_random_addr [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure fr_ioctl [2020-10-13 19:33:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure q922_to_dlci [2020-10-13 19:33:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure dlci_to_q922 [2020-10-13 19:33:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure state [2020-10-13 19:33:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure find_pvc [2020-10-13 19:33:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure add_pvc [2020-10-13 19:33:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_is_used [2020-10-13 19:33:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_carrier [2020-10-13 19:33:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure delete_unused_pvcs [2020-10-13 19:33:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_p [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure fr_hard_header [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_open [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_close [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_ioctl [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_xmit [2020-10-13 19:33:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_log_dlci_active [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_nextseq [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_send [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_set_link_state [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_timer [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_recv [2020-10-13 19:33:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure fr_rx [2020-10-13 19:33:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure fr_start [2020-10-13 19:33:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure fr_stop [2020-10-13 19:33:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure fr_close [2020-10-13 19:33:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_setup [2020-10-13 19:33:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure fr_add_pvc [2020-10-13 19:33:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure fr_del_pvc [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure fr_destroy [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_3 [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2020-10-13 19:33:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_3 [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 19:33:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 19:33:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 19:33:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 19:33:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 19:33:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 19:33:10,871 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 19:34:57,950 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 19:34:57,951 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 19:34:57,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:57 BoogieIcfgContainer [2020-10-13 19:34:57,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 19:34:57,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 19:34:57,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 19:34:57,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 19:34:57,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:33:06" (1/3) ... [2020-10-13 19:34:57,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f14e515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:57, skipping insertion in model container [2020-10-13 19:34:57,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:09" (2/3) ... [2020-10-13 19:34:57,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f14e515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:57, skipping insertion in model container [2020-10-13 19:34:57,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:57" (3/3) ... [2020-10-13 19:34:57,972 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-13 19:34:57,984 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 19:34:57,995 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 19:34:58,012 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 19:34:58,042 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 19:34:58,043 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 19:34:58,043 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 19:34:58,043 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 19:34:58,043 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 19:34:58,043 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 19:34:58,043 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 19:34:58,044 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 19:34:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states. [2020-10-13 19:34:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 19:34:58,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:34:58,103 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:34:58,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:34:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:34:58,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356006, now seen corresponding path program 1 times [2020-10-13 19:34:58,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:34:58,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970748850] [2020-10-13 19:34:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:34:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:34:58,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:34:59,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:00,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:00,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-13 19:35:00,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:35:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2432 [2020-10-13 19:35:00,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:35:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 19:35:00,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 19:35:00,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 19:35:01,626 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 19:35:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:35:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:01,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:01,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:01,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:35:01,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 19:35:01,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:01,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:01,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:01,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:35:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:01,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:01,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:01,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:35:01,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:35:01,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:01,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:01,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:35:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:01,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:01,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:35:01,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:35:01,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:01,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:35:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:01,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:01,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:01,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:35:01,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:01,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:35:01,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:01,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:35:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:01,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:01,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:01,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:35:01,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 19:35:01,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:01,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 19:35:01,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 19:35:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:01,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:01,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:01,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:35:01,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 19:35:01,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:01,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 19:35:01,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:35:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:02,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:02,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:02,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:35:02,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:35:02,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:02,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 19:35:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:02,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:02,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:02,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:35:02,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 19:35:02,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 19:35:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:35:02,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:35:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:02,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:02,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:02,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:35:02,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:02,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:35:02,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:35:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:02,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 19:35:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:35:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:35:02,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:35:02,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:35:02,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:35:02,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:35:02,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:35:02,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:35:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:35:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:35:02,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:35:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 19:35:02,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970748850] [2020-10-13 19:35:02,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:35:02,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 19:35:02,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454554352] [2020-10-13 19:35:02,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 19:35:02,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:35:02,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 19:35:02,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:35:02,134 INFO L87 Difference]: Start difference. First operand 1449 states. Second operand 6 states. [2020-10-13 19:35:02,731 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 19:35:03,859 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2020-10-13 19:35:04,465 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-13 19:36:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:36:04,353 INFO L93 Difference]: Finished difference Result 5057 states and 7449 transitions. [2020-10-13 19:36:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 19:36:04,355 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-13 19:36:04,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:36:04,419 INFO L225 Difference]: With dead ends: 5057 [2020-10-13 19:36:04,420 INFO L226 Difference]: Without dead ends: 3604 [2020-10-13 19:36:04,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 19:36:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2020-10-13 19:36:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 2539. [2020-10-13 19:36:05,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2539 states. [2020-10-13 19:36:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3472 transitions. [2020-10-13 19:36:05,043 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3472 transitions. Word has length 62 [2020-10-13 19:36:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:36:05,044 INFO L479 AbstractCegarLoop]: Abstraction has 2539 states and 3472 transitions. [2020-10-13 19:36:05,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 19:36:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3472 transitions. [2020-10-13 19:36:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 19:36:05,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:36:05,058 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:36:05,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 19:36:05,059 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:36:05,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:36:05,060 INFO L82 PathProgramCache]: Analyzing trace with hash 147134521, now seen corresponding path program 1 times [2020-10-13 19:36:05,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:36:05,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879311566] [2020-10-13 19:36:05,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:36:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:05,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:06,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:09,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:09,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-13 19:36:09,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:36:09,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3866 [2020-10-13 19:36:09,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:36:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 19:36:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:36:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:36:09,697 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 19:36:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:36:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:09,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:09,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:36:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 19:36:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:36:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:36:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:09,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:09,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:09,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:36:09,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:09,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 19:36:09,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:09,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:36:09,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:36:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:09,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:09,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:09,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:36:09,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:09,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 19:36:09,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:36:09,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:36:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:09,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:09,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:09,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:36:09,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:09,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:36:09,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:09,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:36:09,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:36:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:09,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:09,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:09,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:36:09,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:36:09,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:36:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 19:36:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:09,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:10,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:10,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:36:10,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:10,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:36:10,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:10,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:36:10,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:36:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:10,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:10,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:36:10,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:10,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:36:10,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:36:10,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 19:36:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:10,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:10,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:10,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 19:36:10,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:10,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 19:36:10,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 19:36:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 19:36:10,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:36:10,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:36:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:10,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:10,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:10,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:36:10,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:36:10,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:36:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:36:10,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 19:36:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:36:10,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:36:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:36:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:36:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:36:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:36:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:36:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:36:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:36:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:36:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:36:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 19:36:10,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879311566] [2020-10-13 19:36:10,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:36:10,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:36:10,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505130703] [2020-10-13 19:36:10,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:36:10,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:36:10,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:36:10,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:36:10,182 INFO L87 Difference]: Start difference. First operand 2539 states and 3472 transitions. Second operand 8 states. [2020-10-13 19:36:10,709 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 19:36:12,387 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 19:36:13,039 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 19:36:17,589 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-13 19:37:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:37:06,102 INFO L93 Difference]: Finished difference Result 6244 states and 8803 transitions. [2020-10-13 19:37:06,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 19:37:06,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-13 19:37:06,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:37:06,129 INFO L225 Difference]: With dead ends: 6244 [2020-10-13 19:37:06,129 INFO L226 Difference]: Without dead ends: 3727 [2020-10-13 19:37:06,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-13 19:37:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2020-10-13 19:37:06,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 2645. [2020-10-13 19:37:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-13 19:37:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3582 transitions. [2020-10-13 19:37:06,591 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3582 transitions. Word has length 66 [2020-10-13 19:37:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:37:06,592 INFO L479 AbstractCegarLoop]: Abstraction has 2645 states and 3582 transitions. [2020-10-13 19:37:06,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:37:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3582 transitions. [2020-10-13 19:37:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-13 19:37:06,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:37:06,599 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-13 19:37:06,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 19:37:06,599 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:37:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:37:06,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1038077098, now seen corresponding path program 1 times [2020-10-13 19:37:06,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:37:06,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020623561] [2020-10-13 19:37:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:37:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:06,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:07,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:07,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 19:37:07,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:07,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 998 [2020-10-13 19:37:07,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 19:37:07,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 19:37:07,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 19:37:07,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,296 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 19:37:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:37:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:37:08,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 19:37:08,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:37:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:37:08,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:37:08,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:37:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:37:08,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:37:08,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:37:08,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:37:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:37:08,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:37:08,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:37:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:37:08,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:37:08,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 19:37:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:37:08,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:37:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:37:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:37:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:37:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:37:08,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:37:08,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:37:08,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 19:37:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 19:37:08,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 19:37:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 19:37:08,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:37:08,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:37:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 19:37:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:37:08,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:37:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:37:08,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:37:08,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:37:08,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 19:37:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:37:08,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 19:37:08,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:37:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 19:37:08,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:37:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:37:08,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:37:08,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 19:37:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:37:08,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 19:37:08,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:37:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 19:37:08,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:37:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:37:08,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:37:08,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 19:37:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:37:08,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:37:08,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:37:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 19:37:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:37:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:37:08,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:37:08,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:37:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:37:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 19:37:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:37:08,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:37:08,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:37:08,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:37:08,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:37:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 19:37:08,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:37:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:37:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:37:08,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:37:08,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:37:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-13 19:37:08,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020623561] [2020-10-13 19:37:08,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:37:08,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 19:37:08,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595204327] [2020-10-13 19:37:08,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 19:37:08,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:37:08,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 19:37:08,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 19:37:08,922 INFO L87 Difference]: Start difference. First operand 2645 states and 3582 transitions. Second operand 11 states. [2020-10-13 19:37:09,624 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 313