/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:49:24,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:49:24,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:49:24,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:49:24,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:49:24,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:49:24,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:49:24,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:49:24,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:49:24,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:49:24,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:49:24,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:49:24,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:49:24,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:49:24,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:49:24,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:49:24,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:49:24,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:49:24,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:49:24,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:49:24,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:49:24,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:49:24,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:49:24,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:49:24,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:49:24,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:49:24,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:49:24,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:49:24,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:49:24,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:49:24,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:49:24,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:49:24,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:49:24,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:49:24,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:49:24,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:49:24,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:49:24,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:49:24,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:49:24,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:49:24,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:49:24,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 02:49:24,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:49:24,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:49:24,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:49:24,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:49:24,482 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:49:24,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:49:24,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:49:24,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:49:24,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:49:24,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:49:24,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:49:24,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:49:24,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:49:24,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:49:24,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:49:24,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:49:24,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:49:24,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:49:24,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:24,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:49:24,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:49:24,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:49:24,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:49:24,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:49:24,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:49:24,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:49:24,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 02:49:24,488 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:49:24,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:49:24,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:49:24,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:49:25,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:49:25,001 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:49:25,003 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 02:49:25,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df09a769e/8a078a0f849843108f3392c72b7632ee/FLAG32024d896 [2020-09-25 02:49:25,990 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:49:25,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 02:49:26,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df09a769e/8a078a0f849843108f3392c72b7632ee/FLAG32024d896 [2020-09-25 02:49:26,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df09a769e/8a078a0f849843108f3392c72b7632ee [2020-09-25 02:49:26,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:49:26,502 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:49:26,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:26,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:49:26,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:49:26,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:26" (1/1) ... [2020-09-25 02:49:26,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b66d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:26, skipping insertion in model container [2020-09-25 02:49:26,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:26" (1/1) ... [2020-09-25 02:49:26,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:49:26,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:49:28,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:28,127 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:49:28,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:28,612 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:49:28,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28 WrapperNode [2020-09-25 02:49:28,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:28,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:49:28,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:49:28,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:49:28,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... [2020-09-25 02:49:28,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:49:28,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:49:28,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:49:28,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:49:28,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:49:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:49:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 02:49:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 02:49:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 02:49:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 02:49:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 02:49:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 02:49:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 02:49:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 02:49:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 02:49:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 02:49:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 02:49:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 02:49:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 02:49:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 02:49:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 02:49:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:49:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 02:49:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 02:49:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 02:49:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 02:49:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 02:49:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 02:49:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 02:49:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 02:49:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 02:49:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 02:49:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 02:49:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 02:49:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 02:49:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 02:49:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 02:49:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 02:49:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 02:49:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 02:49:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 02:49:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 02:49:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 02:49:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 02:49:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 02:49:28,919 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 02:49:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 02:49:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 02:49:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:49:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 02:49:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 02:49:28,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 02:49:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 02:49:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 02:49:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 02:49:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 02:49:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 02:49:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 02:49:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 02:49:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 02:49:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 02:49:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 02:49:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 02:49:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 02:49:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 02:49:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 02:49:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 02:49:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 02:49:28,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 02:49:28,926 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 02:49:28,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 02:49:28,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 02:49:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 02:49:28,930 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 02:49:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 02:49:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 02:49:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 02:49:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 02:49:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 02:49:28,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 02:49:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 02:49:28,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 02:49:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 02:49:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 02:49:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 02:49:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 02:49:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 02:49:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 02:49:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 02:49:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 02:49:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:49:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 02:49:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 02:49:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 02:49:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 02:49:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:49:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 02:49:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 02:49:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 02:49:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 02:49:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 02:49:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 02:49:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 02:49:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 02:49:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 02:49:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 02:49:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 02:49:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:49:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 02:49:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 02:49:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 02:49:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:49:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 02:49:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 02:49:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 02:49:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 02:49:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 02:49:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 02:49:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 02:49:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 02:49:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:49:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:49:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 02:49:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 02:49:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 02:49:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 02:49:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 02:49:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 02:49:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 02:49:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 02:49:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 02:49:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 02:49:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 02:49:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 02:49:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 02:49:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 02:49:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 02:49:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 02:49:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 02:49:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 02:49:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 02:49:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:49:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:49:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:49:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 02:49:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:49:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 02:49:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 02:49:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 02:49:29,568 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 02:49:30,993 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:49:30,993 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 02:49:31,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:31 BoogieIcfgContainer [2020-09-25 02:49:31,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:49:31,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:49:31,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:49:31,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:49:31,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:49:26" (1/3) ... [2020-09-25 02:49:31,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b593648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:31, skipping insertion in model container [2020-09-25 02:49:31,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:28" (2/3) ... [2020-09-25 02:49:31,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b593648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:31, skipping insertion in model container [2020-09-25 02:49:31,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:31" (3/3) ... [2020-09-25 02:49:31,024 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 02:49:31,036 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:49:31,048 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:49:31,071 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:49:31,112 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:49:31,112 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:49:31,112 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:49:31,112 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:49:31,112 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:49:31,113 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:49:31,113 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:49:31,113 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:49:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 02:49:31,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 02:49:31,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:31,190 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:49:31,191 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:31,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:31,199 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 02:49:31,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:31,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126349322] [2020-09-25 02:49:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:31,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:33,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:35,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:36,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:36,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 02:49:36,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:49:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-09-25 02:49:36,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:49:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 02:49:36,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:49:36,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:49:37,444 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 02:49:37,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:37,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:37,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:37,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 02:49:37,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 02:49:37,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:49:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:37,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:37,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:37,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:37,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 02:49:37,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:37,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:49:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:37,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:37,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:37,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:49:38,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:38,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 02:49:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:38,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 02:49:38,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:38,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:38,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:49:38,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:38,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 02:49:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:38,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 02:49:38,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:49:38,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:49:38,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:49:38,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 02:49:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:38,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 02:49:38,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:49:38,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 02:49:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:49:38,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 02:49:38,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:49:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:38,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:49:38,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:38,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:49:38,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:49:38,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:49:38,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 02:49:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:38,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 02:49:38,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:49:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:38,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 02:49:38,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126349322] [2020-09-25 02:49:38,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:49:38,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:49:38,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709957516] [2020-09-25 02:49:38,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:49:38,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:38,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:49:38,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:49:38,840 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 9 states. [2020-09-25 02:49:40,513 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 02:49:40,920 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 02:49:50,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:50,901 INFO L93 Difference]: Finished difference Result 2585 states and 3000 transitions. [2020-09-25 02:49:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 02:49:50,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-25 02:49:50,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:50,940 INFO L225 Difference]: With dead ends: 2585 [2020-09-25 02:49:50,941 INFO L226 Difference]: Without dead ends: 1559 [2020-09-25 02:49:50,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-09-25 02:49:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-09-25 02:49:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1125. [2020-09-25 02:49:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1125 states. [2020-09-25 02:49:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1230 transitions. [2020-09-25 02:49:51,170 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1230 transitions. Word has length 230 [2020-09-25 02:49:51,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:51,171 INFO L479 AbstractCegarLoop]: Abstraction has 1125 states and 1230 transitions. [2020-09-25 02:49:51,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:49:51,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1230 transitions. [2020-09-25 02:49:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 02:49:51,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:51,179 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] [2020-09-25 02:49:51,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:49:51,180 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:51,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1201488600, now seen corresponding path program 1 times [2020-09-25 02:49:51,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:51,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080169672] [2020-09-25 02:49:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:56,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:56,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 02:49:56,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:49:56,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 02:49:56,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:49:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-25 02:49:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:49:56,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:56,711 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 02:49:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:56,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:56,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:56,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 02:49:56,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:56,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 02:49:56,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:56,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:49:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:57,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:49:57,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:57,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:49:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:57,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 02:49:57,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:57,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 02:49:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:57,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:49:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:57,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:57,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:49:57,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 02:49:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:57,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:57,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 02:49:57,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 02:49:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:57,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 02:49:57,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:49:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:49:57,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:49:57,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 02:49:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:49:57,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:49:57,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:49:57,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:57,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 02:49:57,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:49:57,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 02:49:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-25 02:49:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:57,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:57,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:57,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 02:49:57,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:49:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 02:49:57,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080169672] [2020-09-25 02:49:57,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:49:57,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:49:57,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95476019] [2020-09-25 02:49:57,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:49:57,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:57,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:49:57,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:49:57,970 INFO L87 Difference]: Start difference. First operand 1125 states and 1230 transitions. Second operand 10 states. [2020-09-25 02:49:59,105 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 02:50:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:50:08,666 INFO L93 Difference]: Finished difference Result 2537 states and 2880 transitions. [2020-09-25 02:50:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 02:50:08,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 238 [2020-09-25 02:50:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:50:08,678 INFO L225 Difference]: With dead ends: 2537 [2020-09-25 02:50:08,678 INFO L226 Difference]: Without dead ends: 1563 [2020-09-25 02:50:08,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2020-09-25 02:50:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-09-25 02:50:08,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1129. [2020-09-25 02:50:08,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-09-25 02:50:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1234 transitions. [2020-09-25 02:50:08,776 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1234 transitions. Word has length 238 [2020-09-25 02:50:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:50:08,777 INFO L479 AbstractCegarLoop]: Abstraction has 1129 states and 1234 transitions. [2020-09-25 02:50:08,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:50:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1234 transitions. [2020-09-25 02:50:08,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-25 02:50:08,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:50:08,782 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] [2020-09-25 02:50:08,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:50:08,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:50:08,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:50:08,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1936210604, now seen corresponding path program 2 times [2020-09-25 02:50:08,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:50:08,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507165846] [2020-09-25 02:50:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:50:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:08,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:09,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:09,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:13,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-25 02:50:13,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:50:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 02:50:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:50:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 02:50:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:50:13,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:50:14,449 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 02:50:14,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:14,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:14,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:14,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 02:50:14,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 02:50:14,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:14,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:50:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:14,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:14,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:14,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:14,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:50:14,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:14,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:50:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:14,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:14,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 02:50:14,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:14,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 02:50:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:50:15,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:50:15,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:15,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 02:50:15,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:15,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 02:50:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 02:50:15,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:50:15,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 02:50:15,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:50:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 02:50:15,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 02:50:15,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:50:15,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:50:15,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:50:15,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-25 02:50:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:50:15,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:50:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:50:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:50:15,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:50:15,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:50:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:50:15,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 02:50:15,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:15,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-09-25 02:50:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:15,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:15,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:15,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:50:15,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:15,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:50:15,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:50:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:15,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0