/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 interpolation-heuristic=FIRST --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 [2020-09-24 16:39:30,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:39:30,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:39:30,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:39:30,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:39:30,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:39:30,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:39:30,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:39:30,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:39:30,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:39:30,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:39:30,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:39:30,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:39:30,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:39:30,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:39:30,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:39:30,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:39:30,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:39:30,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:39:30,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:39:30,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:39:30,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:39:30,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:39:30,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:39:30,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:39:30,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:39:30,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:39:30,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:39:30,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:39:30,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:39:30,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:39:30,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:39:30,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:39:30,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:39:30,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:39:30,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:39:30,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:39:30,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:39:30,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:39:30,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:39:30,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:39:30,930 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 [2020-09-24 16:39:30,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:39:30,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:39:30,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:39:30,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:39:30,968 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:39:30,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:39:30,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:39:30,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:39:30,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:39:30,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:39:30,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:39:30,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:39:30,969 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:39:30,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:39:30,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:39:30,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:39:30,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:39:30,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:39:30,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:39:30,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:39:30,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:39:30,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:39:30,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:39:30,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:39:30,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:39:30,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:39:30,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 16:39:30,972 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:39:31,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:39:31,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:39:31,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:39:31,490 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:39:31,491 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:39:31,492 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-24 16:39:31,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f30f70d5/fa1a42ce9471469ca3029baa1a226327/FLAGe0c949a72 [2020-09-24 16:39:32,549 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:39:32,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-24 16:39:32,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f30f70d5/fa1a42ce9471469ca3029baa1a226327/FLAGe0c949a72 [2020-09-24 16:39:33,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f30f70d5/fa1a42ce9471469ca3029baa1a226327 [2020-09-24 16:39:33,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:39:33,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:39:33,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:33,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:39:33,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:39:33,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:33" (1/1) ... [2020-09-24 16:39:33,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f71ec06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:33, skipping insertion in model container [2020-09-24 16:39:33,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:33" (1/1) ... [2020-09-24 16:39:33,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:39:33,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:39:34,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:34,801 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:39:35,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:35,184 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:39:35,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35 WrapperNode [2020-09-24 16:39:35,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:35,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:39:35,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:39:35,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:39:35,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ... [2020-09-24 16:39:35,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:39:35,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:39:35,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:39:35,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:39:35,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (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 [2020-09-24 16:39:35,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:39:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:39:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-24 16:39:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-24 16:39:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-24 16:39:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-24 16:39:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-24 16:39:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-24 16:39:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 16:39:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 16:39:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 16:39:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 16:39:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-24 16:39:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-24 16:39:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-24 16:39:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 16:39:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-24 16:39:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:39:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 16:39:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 16:39:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 16:39:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 16:39:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 16:39:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 16:39:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 16:39:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 16:39:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 16:39:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-24 16:39:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-24 16:39:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-24 16:39:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-24 16:39:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-24 16:39:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 16:39:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-24 16:39:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-24 16:39:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-24 16:39:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-24 16:39:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-24 16:39:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-24 16:39:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-24 16:39:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-24 16:39:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-24 16:39:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-24 16:39:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-24 16:39:35,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:39:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 16:39:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 16:39:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 16:39:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 16:39:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 16:39:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-24 16:39:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-24 16:39:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 16:39:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 16:39:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 16:39:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 16:39:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 16:39:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 16:39:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 16:39:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 16:39:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 16:39:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 16:39:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 16:39:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 16:39:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 16:39:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 16:39:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 16:39:35,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 16:39:35,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 16:39:35,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 16:39:35,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-24 16:39:35,504 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-24 16:39:35,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 16:39:35,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-24 16:39:35,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-24 16:39:35,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 16:39:35,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-24 16:39:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 16:39:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 16:39:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 16:39:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-24 16:39:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 16:39:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 16:39:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-24 16:39:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 16:39:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 16:39:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 16:39:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-24 16:39:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-24 16:39:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-24 16:39:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-24 16:39:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-24 16:39:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-24 16:39:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-24 16:39:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 16:39:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 16:39:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 16:39:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-24 16:39:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:39:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 16:39:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-24 16:39:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-24 16:39:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-24 16:39:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:39:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-24 16:39:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-24 16:39:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-24 16:39:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-24 16:39:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 16:39:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-24 16:39:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 16:39:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 16:39:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:39:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 16:39:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 16:39:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 16:39:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 16:39:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 16:39:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 16:39:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-24 16:39:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 16:39:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:39:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 16:39:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-24 16:39:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-24 16:39:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:39:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-24 16:39:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 16:39:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 16:39:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 16:39:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 16:39:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-24 16:39:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-24 16:39:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 16:39:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:39:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:39:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:39:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 16:39:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:39:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:39:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 16:39:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:39:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 16:39:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 16:39:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 16:39:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 16:39:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 16:39:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 16:39:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 16:39:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-24 16:39:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-24 16:39:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 16:39:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 16:39:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-24 16:39:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-24 16:39:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-24 16:39:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-24 16:39:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-24 16:39:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-24 16:39:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-24 16:39:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-24 16:39:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-24 16:39:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-24 16:39:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-24 16:39:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-24 16:39:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-24 16:39:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-24 16:39:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:39:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-24 16:39:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-24 16:39:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-24 16:39:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-24 16:39:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:39:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-24 16:39:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-24 16:39:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-24 16:39:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 16:39:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 16:39:35,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 16:39:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:39:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 16:39:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 16:39:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 16:39:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 16:39:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 16:39:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 16:39:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 16:39:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 16:39:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 16:39:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 16:39:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 16:39:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 16:39:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 16:39:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 16:39:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 16:39:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 16:39:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:39:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 16:39:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:39:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 16:39:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:39:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 16:39:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:39:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 16:39:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 16:39:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 16:39:36,208 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 16:39:37,562 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:39:37,563 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 16:39:37,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:37 BoogieIcfgContainer [2020-09-24 16:39:37,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:39:37,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:39:37,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:39:37,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:39:37,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:39:33" (1/3) ... [2020-09-24 16:39:37,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29149990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:37, skipping insertion in model container [2020-09-24 16:39:37,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (2/3) ... [2020-09-24 16:39:37,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29149990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:37, skipping insertion in model container [2020-09-24 16:39:37,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:37" (3/3) ... [2020-09-24 16:39:37,590 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 [2020-09-24 16:39:37,599 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:39:37,611 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:39:37,633 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:39:37,670 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:39:37,670 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:39:37,670 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:39:37,670 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:39:37,670 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:39:37,671 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:39:37,671 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:39:37,671 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:39:37,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-24 16:39:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 16:39:37,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:37,735 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] [2020-09-24 16:39:37,735 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:37,744 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-24 16:39:37,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:37,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038130916] [2020-09-24 16:39:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:38,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:38,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:38,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:38,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:38,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 16:39:38,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 16:39:38,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:39:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 16:39:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:39:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,040 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 16:39:39,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 16:39:39,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:39:39,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:39:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:39,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:39:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:39,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:39,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 16:39:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:39:39,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:39,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:39:39,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:39,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 16:39:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:39,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:39,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:39:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:39:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:39:39,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 16:39:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:39:39,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:39:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 16:39:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:39:39,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 16:39:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:39:39,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:39:39,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 16:39:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:39,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:39,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:39,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:39:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 16:39:39,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038130916] [2020-09-24 16:39:39,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:39:39,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 16:39:39,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488825326] [2020-09-24 16:39:39,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:39:39,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:39,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:39:39,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:39:39,710 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 9 states. [2020-09-24 16:39:41,380 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 16:39:41,738 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 16:39:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:51,241 INFO L93 Difference]: Finished difference Result 2585 states and 3000 transitions. [2020-09-24 16:39:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:39:51,243 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-24 16:39:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:51,274 INFO L225 Difference]: With dead ends: 2585 [2020-09-24 16:39:51,274 INFO L226 Difference]: Without dead ends: 1559 [2020-09-24 16:39:51,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:39:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-09-24 16:39:51,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1125. [2020-09-24 16:39:51,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1125 states. [2020-09-24 16:39:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1230 transitions. [2020-09-24 16:39:51,496 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1230 transitions. Word has length 230 [2020-09-24 16:39:51,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:51,497 INFO L479 AbstractCegarLoop]: Abstraction has 1125 states and 1230 transitions. [2020-09-24 16:39:51,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:39:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1230 transitions. [2020-09-24 16:39:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-24 16:39:51,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:51,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2020-09-24 16:39:51,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:39:51,505 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:51,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:51,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1201488600, now seen corresponding path program 1 times [2020-09-24 16:39:51,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:51,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627132629] [2020-09-24 16:39:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:51,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:51,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:51,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:51,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:51,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 16:39:51,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:39:51,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:39:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 16:39:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:39:51,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:52,042 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 16:39:52,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 16:39:52,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:52,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:39:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:52,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:52,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:39:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:39:52,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 16:39:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:39:52,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,286 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:39:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:52,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:39:52,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 16:39:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:52,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:39:52,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:39:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:39:52,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:39:52,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 16:39:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:52,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:39:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 16:39:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:39:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 16:39:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:39:52,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:39:52,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:52,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 16:39:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:52,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:52,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:52,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:52,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:52,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:52,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:39:52,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:52,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 16:39:52,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627132629] [2020-09-24 16:39:52,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:39:52,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 16:39:52,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130779290] [2020-09-24 16:39:52,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:39:52,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:52,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:39:52,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:39:52,672 INFO L87 Difference]: Start difference. First operand 1125 states and 1230 transitions. Second operand 10 states. [2020-09-24 16:39:53,885 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 16:40:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:02,437 INFO L93 Difference]: Finished difference Result 2537 states and 2880 transitions. [2020-09-24 16:40:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 16:40:02,438 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 238 [2020-09-24 16:40:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:02,450 INFO L225 Difference]: With dead ends: 2537 [2020-09-24 16:40:02,450 INFO L226 Difference]: Without dead ends: 1563 [2020-09-24 16:40:02,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2020-09-24 16:40:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-09-24 16:40:02,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1129. [2020-09-24 16:40:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-09-24 16:40:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1234 transitions. [2020-09-24 16:40:02,558 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1234 transitions. Word has length 238 [2020-09-24 16:40:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:02,560 INFO L479 AbstractCegarLoop]: Abstraction has 1129 states and 1234 transitions. [2020-09-24 16:40:02,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:40:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1234 transitions. [2020-09-24 16:40:02,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 16:40:02,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:02,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-09-24 16:40:02,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:40:02,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:02,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:02,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1936210604, now seen corresponding path program 2 times [2020-09-24 16:40:02,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:02,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389381803] [2020-09-24 16:40:02,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:02,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:02,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:02,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:02,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:02,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 16:40:02,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:40:02,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:02,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:40:02,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 16:40:02,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:40:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:03,149 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 16:40:03,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 16:40:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:03,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:40:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:03,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:40:03,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:40:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,336 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,336 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:03,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:03,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 16:40:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:40:03,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:03,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:40:03,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 16:40:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 16:40:03,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:40:03,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:40:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:40:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 16:40:03,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:03,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 16:40:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 16:40:03,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:40:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:03,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-24 16:40:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:40:03,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:40:03,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 16:40:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:40:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:40:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:40:03,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:03,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-09-24 16:40:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:03,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:03,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:03,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:03,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:03,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:40:03,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:03,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:03,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:40:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 16:40:03,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389381803] [2020-09-24 16:40:03,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:40:03,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 16:40:03,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038450719] [2020-09-24 16:40:03,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:40:03,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:40:03,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:40:03,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:40:03,782 INFO L87 Difference]: Start difference. First operand 1129 states and 1234 transitions. Second operand 11 states. [2020-09-24 16:40:04,992 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 16:40:14,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:14,019 INFO L93 Difference]: Finished difference Result 2545 states and 2888 transitions. [2020-09-24 16:40:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 16:40:14,020 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-09-24 16:40:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:14,030 INFO L225 Difference]: With dead ends: 2545 [2020-09-24 16:40:14,030 INFO L226 Difference]: Without dead ends: 1567 [2020-09-24 16:40:14,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2020-09-24 16:40:14,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2020-09-24 16:40:14,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1133. [2020-09-24 16:40:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-09-24 16:40:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1238 transitions. [2020-09-24 16:40:14,117 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1238 transitions. Word has length 246 [2020-09-24 16:40:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:14,117 INFO L479 AbstractCegarLoop]: Abstraction has 1133 states and 1238 transitions. [2020-09-24 16:40:14,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:40:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1238 transitions. [2020-09-24 16:40:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-24 16:40:14,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:14,121 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2020-09-24 16:40:14,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:40:14,122 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:14,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:14,122 INFO L82 PathProgramCache]: Analyzing trace with hash 580514864, now seen corresponding path program 3 times [2020-09-24 16:40:14,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:14,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392882077] [2020-09-24 16:40:14,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:14,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:14,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:14,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:14,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:14,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-24 16:40:14,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:40:14,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:40:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 16:40:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:40:14,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:14,726 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 16:40:14,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:14,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:14,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:14,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:14,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:14,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 16:40:14,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:14,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:14,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:14,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:14,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:14,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:40:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:14,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:14,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:14,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:14,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:14,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:14,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:14,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:14,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:14,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:14,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 16:40:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:14,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:14,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:14,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:14,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:14,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:40:14,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:14,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:14,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:14,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:14,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 16:40:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:14,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:14,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:14,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:14,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:40:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:14,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:14,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:14,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:14,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:14,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:14,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:14,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:14,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:40:14,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:14,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:40:14,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 16:40:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:15,041 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:15,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:15,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:15,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:15,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 16:40:15,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:15,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 16:40:15,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:15,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:40:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:40:15,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:40:15,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:40:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:15,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:15,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:15,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:15,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:15,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 16:40:15,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:15,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 16:40:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-24 16:40:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:15,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:15,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:40:15,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 16:40:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:15,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:15,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:15,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:15,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:15,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:40:15,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:40:15,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:15,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:40:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:15,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:15,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:15,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:15,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:15,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:40:15,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:15,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-24 16:40:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:15,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:15,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:15,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:15,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:15,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:40:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:15,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:40:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:40:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-24 16:40:15,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392882077] [2020-09-24 16:40:15,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:40:15,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 16:40:15,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424752684] [2020-09-24 16:40:15,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:40:15,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:40:15,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:40:15,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:40:15,435 INFO L87 Difference]: Start difference. First operand 1133 states and 1238 transitions. Second operand 12 states. [2020-09-24 16:40:16,759 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 16:40:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:27,404 INFO L93 Difference]: Finished difference Result 2553 states and 2896 transitions. [2020-09-24 16:40:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 16:40:27,405 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-09-24 16:40:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:27,413 INFO L225 Difference]: With dead ends: 2553 [2020-09-24 16:40:27,414 INFO L226 Difference]: Without dead ends: 1571 [2020-09-24 16:40:27,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-09-24 16:40:27,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2020-09-24 16:40:27,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1137. [2020-09-24 16:40:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-09-24 16:40:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1242 transitions. [2020-09-24 16:40:27,499 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1242 transitions. Word has length 254 [2020-09-24 16:40:27,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:27,499 INFO L479 AbstractCegarLoop]: Abstraction has 1137 states and 1242 transitions. [2020-09-24 16:40:27,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:40:27,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1242 transitions. [2020-09-24 16:40:27,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-09-24 16:40:27,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:27,504 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 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] [2020-09-24 16:40:27,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:40:27,504 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:27,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1946424908, now seen corresponding path program 4 times [2020-09-24 16:40:27,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:27,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870791474] [2020-09-24 16:40:27,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY