/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:40:00,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:40:00,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:40:00,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:40:00,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:40:00,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:40:00,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:40:00,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:40:00,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:40:00,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:40:00,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:40:00,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:40:00,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:40:00,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:40:00,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:40:00,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:40:00,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:40:00,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:40:00,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:40:00,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:40:00,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:40:00,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:40:00,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:40:00,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:40:00,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:40:00,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:40:00,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:40:00,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:40:00,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:40:00,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:40:00,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:40:00,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:40:00,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:40:00,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:40:00,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:40:00,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:40:00,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:40:00,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:40:00,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:40:00,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:40:00,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:40:00,727 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 [2020-09-25 01:40:00,769 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:40:00,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:40:00,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:40:00,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:40:00,772 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:40:00,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:40:00,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:40:00,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:40:00,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:40:00,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:40:00,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:40:00,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:40:00,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:40:00,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:40:00,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:40:00,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:40:00,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:40:00,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:40:00,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:40:00,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:40:00,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:40:00,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:40:00,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:40:00,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:40:00,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:40:00,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:40:00,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 01:40:00,778 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 01:40:01,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:40:01,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:40:01,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:40:01,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:40:01,287 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:40:01,288 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 01:40:01,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/874167d5b/491034993367499ca0a87d087d61e7df/FLAG28ca23b8f [2020-09-25 01:40:02,277 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:40:02,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 01:40:02,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/874167d5b/491034993367499ca0a87d087d61e7df/FLAG28ca23b8f [2020-09-25 01:40:02,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/874167d5b/491034993367499ca0a87d087d61e7df [2020-09-25 01:40:02,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:40:02,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:40:02,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:40:02,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:40:02,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:40:02,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:40:02" (1/1) ... [2020-09-25 01:40:02,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248847c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:02, skipping insertion in model container [2020-09-25 01:40:02,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:40:02" (1/1) ... [2020-09-25 01:40:02,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:40:02,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:40:04,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:40:04,737 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:40:04,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:40:05,033 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:40:05,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05 WrapperNode [2020-09-25 01:40:05,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:40:05,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:40:05,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:40:05,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:40:05,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (1/1) ... [2020-09-25 01:40:05,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:40:05,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:40:05,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:40:05,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:40:05,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (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 [2020-09-25 01:40:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:40:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:40:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 01:40:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 01:40:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 01:40:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 01:40:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 01:40:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 01:40:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 01:40:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 01:40:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 01:40:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 01:40:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 01:40:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 01:40:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 01:40:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 01:40:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 01:40:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:40:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 01:40:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 01:40:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 01:40:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 01:40:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 01:40:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 01:40:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 01:40:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 01:40:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 01:40:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 01:40:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 01:40:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 01:40:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 01:40:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 01:40:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 01:40:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 01:40:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 01:40:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 01:40:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 01:40:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 01:40:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 01:40:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 01:40:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 01:40:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 01:40:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 01:40:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 01:40:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:40:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 01:40:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 01:40:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 01:40:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 01:40:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 01:40:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 01:40:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 01:40:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 01:40:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 01:40:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 01:40:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 01:40:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 01:40:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 01:40:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 01:40:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 01:40:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 01:40:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 01:40:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 01:40:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 01:40:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 01:40:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 01:40:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 01:40:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 01:40:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 01:40:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 01:40:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 01:40:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 01:40:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 01:40:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 01:40:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 01:40:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 01:40:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 01:40:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 01:40:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 01:40:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 01:40:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 01:40:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 01:40:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 01:40:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 01:40:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 01:40:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 01:40:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 01:40:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 01:40:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 01:40:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 01:40:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 01:40:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 01:40:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 01:40:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 01:40:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 01:40:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 01:40:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 01:40:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 01:40:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:40:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 01:40:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 01:40:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 01:40:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 01:40:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:40:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 01:40:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 01:40:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 01:40:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 01:40:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 01:40:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 01:40:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 01:40:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 01:40:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:40:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 01:40:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 01:40:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 01:40:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 01:40:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 01:40:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 01:40:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 01:40:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 01:40:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:40:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 01:40:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 01:40:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 01:40:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:40:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 01:40:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 01:40:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 01:40:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 01:40:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 01:40:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 01:40:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 01:40:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 01:40:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:40:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 01:40:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:40:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 01:40:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:40:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:40:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 01:40:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:40:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 01:40:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 01:40:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 01:40:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 01:40:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 01:40:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 01:40:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 01:40:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 01:40:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 01:40:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 01:40:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 01:40:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 01:40:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 01:40:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 01:40:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 01:40:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 01:40:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 01:40:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 01:40:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 01:40:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 01:40:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 01:40:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 01:40:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 01:40:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 01:40:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 01:40:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 01:40:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 01:40:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 01:40:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 01:40:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 01:40:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 01:40:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 01:40:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 01:40:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 01:40:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 01:40:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 01:40:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 01:40:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 01:40:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:40:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 01:40:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 01:40:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 01:40:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 01:40:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:40:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 01:40:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 01:40:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 01:40:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 01:40:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 01:40:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 01:40:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:40:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 01:40:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 01:40:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 01:40:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 01:40:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 01:40:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 01:40:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 01:40:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 01:40:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 01:40:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 01:40:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 01:40:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 01:40:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 01:40:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 01:40:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 01:40:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 01:40:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:40:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 01:40:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:40:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 01:40:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:40:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 01:40:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:40:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 01:40:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 01:40:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 01:40:06,292 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 01:40:07,607 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:40:07,608 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 01:40:07,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:40:07 BoogieIcfgContainer [2020-09-25 01:40:07,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:40:07,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:40:07,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:40:07,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:40:07,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:40:02" (1/3) ... [2020-09-25 01:40:07,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7008b04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:40:07, skipping insertion in model container [2020-09-25 01:40:07,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:05" (2/3) ... [2020-09-25 01:40:07,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7008b04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:40:07, skipping insertion in model container [2020-09-25 01:40:07,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:40:07" (3/3) ... [2020-09-25 01:40:07,633 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 01:40:07,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:40:07,659 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:40:07,685 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:40:07,730 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:40:07,730 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:40:07,731 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:40:07,731 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:40:07,731 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:40:07,731 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:40:07,732 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:40:07,732 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:40:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 01:40:07,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:40:07,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:07,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:40:07,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:07,832 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 01:40:07,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:07,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728941519] [2020-09-25 01:40:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:08,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:09,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:12,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:13,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:13,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 01:40:13,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:40:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-09-25 01:40:13,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:13,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:13,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 01:40:13,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 01:40:13,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:40:14,077 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 01:40:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 01:40:14,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 01:40:14,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:40:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:14,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 01:40:14,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 01:40:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:14,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 01:40:14,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:14,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 01:40:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 01:40:14,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:40:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:40:14,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 01:40:14,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:14,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 01:40:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:14,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 01:40:14,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:40:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 01:40:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:40:14,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 01:40:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:14,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 01:40:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:40:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 01:40:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:40:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 01:40:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:40:14,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 01:40:14,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 01:40:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:14,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:14,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:14,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 01:40:14,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:14,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 01:40:14,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:14,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:14,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:14,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:15,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:15,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:40:15,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:15,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 01:40:15,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:15,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 01:40:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:15,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:15,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:15,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:15,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:15,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 01:40:15,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:15,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:15,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 01:40:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:15,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 01:40:15,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728941519] [2020-09-25 01:40:15,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:15,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:40:15,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839923428] [2020-09-25 01:40:15,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:40:15,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:15,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:40:15,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:40:15,162 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 10 states. [2020-09-25 01:40:16,257 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 01:40:17,242 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 01:40:17,649 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-09-25 01:40:33,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:33,841 INFO L93 Difference]: Finished difference Result 3861 states and 4542 transitions. [2020-09-25 01:40:33,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 01:40:33,845 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-25 01:40:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:33,887 INFO L225 Difference]: With dead ends: 3861 [2020-09-25 01:40:33,887 INFO L226 Difference]: Without dead ends: 2829 [2020-09-25 01:40:33,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-09-25 01:40:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2020-09-25 01:40:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1995. [2020-09-25 01:40:34,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-09-25 01:40:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2197 transitions. [2020-09-25 01:40:34,282 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2197 transitions. Word has length 230 [2020-09-25 01:40:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:34,286 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2197 transitions. [2020-09-25 01:40:34,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:40:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2197 transitions. [2020-09-25 01:40:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-25 01:40:34,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:34,297 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:40:34,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:40:34,298 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:34,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1284376602, now seen corresponding path program 1 times [2020-09-25 01:40:34,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:34,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008776989] [2020-09-25 01:40:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:34,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:37,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-09-25 01:40:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:40:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:40:39,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:40:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-25 01:40:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:40:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:39,859 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 01:40:39,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 01:40:40,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 01:40:40,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:40:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:40,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 01:40:40,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:40,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 01:40:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:40,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 01:40:40,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 01:40:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 01:40:40,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 01:40:40,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:40:40,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:40:40,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 01:40:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:40,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 01:40:40,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:40:40,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 01:40:40,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 01:40:40,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 01:40:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:40,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 01:40:40,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:40:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 01:40:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 01:40:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 01:40:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 01:40:40,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 01:40:40,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 01:40:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:40,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 01:40:40,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 01:40:40,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 01:40:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:40,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:40,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:40,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 01:40:40,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 01:40:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:40,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:41,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:41,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 01:40:41,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 01:40:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:41,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:41,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 01:40:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 01:40:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:41,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-09-25 01:40:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:41,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:41,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:41,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:41,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:41,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:40:41,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 01:40:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 01:40:41,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008776989] [2020-09-25 01:40:41,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 01:40:41,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 01:40:41,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410171958] [2020-09-25 01:40:41,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:40:41,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:41,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:40:41,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:40:41,252 INFO L87 Difference]: Start difference. First operand 1995 states and 2197 transitions. Second operand 11 states. [2020-09-25 01:40:42,238 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 01:40:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:49,017 INFO L93 Difference]: Finished difference Result 4676 states and 5335 transitions. [2020-09-25 01:40:49,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:40:49,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 284 [2020-09-25 01:40:49,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:49,039 INFO L225 Difference]: With dead ends: 4676 [2020-09-25 01:40:49,039 INFO L226 Difference]: Without dead ends: 2832 [2020-09-25 01:40:49,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:40:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2020-09-25 01:40:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1999. [2020-09-25 01:40:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2020-09-25 01:40:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2201 transitions. [2020-09-25 01:40:49,219 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2201 transitions. Word has length 284 [2020-09-25 01:40:49,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:49,220 INFO L479 AbstractCegarLoop]: Abstraction has 1999 states and 2201 transitions. [2020-09-25 01:40:49,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:40:49,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2201 transitions. [2020-09-25 01:40:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-09-25 01:40:49,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:49,227 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:40:49,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:40:49,227 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:49,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:49,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1099137378, now seen corresponding path program 2 times [2020-09-25 01:40:49,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:49,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571243646] [2020-09-25 01:40:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:49,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking...