/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=BIGGEST --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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:12:54,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:12:54,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:12:54,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:12:54,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:12:54,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:12:54,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:12:54,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:12:54,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:12:54,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:12:54,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:12:54,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:12:54,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:12:54,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:12:54,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:12:54,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:12:54,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:12:54,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:12:54,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:12:54,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:12:54,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:12:54,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:12:54,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:12:54,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:12:54,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:12:54,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:12:54,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:12:54,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:12:54,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:12:54,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:12:54,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:12:54,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:12:54,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:12:54,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:12:54,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:12:54,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:12:54,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:12:54,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:12:54,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:12:54,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:12:54,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:12:54,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 21:12:54,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:12:54,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:12:54,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:12:54,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:12:54,411 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:12:54,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:12:54,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:12:54,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:12:54,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:12:54,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:12:54,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:12:54,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:12:54,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:12:54,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:12:54,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:12:54,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:12:54,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:12:54,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:12:54,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:12:54,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:12:54,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:12:54,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:12:54,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:12:54,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:12:54,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:12:54,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:12:54,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 21:12:54,416 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 21:12:54,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:12:54,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:12:54,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:12:54,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:12:54,929 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:12:54,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-09-24 21:12:55,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a4f3b656/e9c72804e65842bbaa280cb64c9fc458/FLAG52b15bc3c [2020-09-24 21:12:55,830 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:12:55,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-09-24 21:12:55,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a4f3b656/e9c72804e65842bbaa280cb64c9fc458/FLAG52b15bc3c [2020-09-24 21:12:56,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a4f3b656/e9c72804e65842bbaa280cb64c9fc458 [2020-09-24 21:12:56,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:12:56,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:12:56,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:12:56,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:12:56,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:12:56,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:12:56" (1/1) ... [2020-09-24 21:12:56,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30829a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:56, skipping insertion in model container [2020-09-24 21:12:56,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:12:56" (1/1) ... [2020-09-24 21:12:56,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:12:56,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:12:57,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:12:57,701 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:12:57,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:12:58,017 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:12:58,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58 WrapperNode [2020-09-24 21:12:58,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:12:58,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:12:58,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:12:58,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:12:58,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... [2020-09-24 21:12:58,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:12:58,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:12:58,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:12:58,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:12:58,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:12:58,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:12:58,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:12:58,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:12:58,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 21:12:58,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 21:12:58,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-24 21:12:58,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-24 21:12:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 21:12:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 21:12:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 21:12:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2020-09-24 21:12:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure m5632_recover [2020-09-24 21:12:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_prereset [2020-09-24 21:12:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_postreset [2020-09-24 21:12:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_init [2020-09-24 21:12:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_exit [2020-09-24 21:12:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-24 21:12:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:12:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-09-24 21:12:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2020-09-24 21:12:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2020-09-24 21:12:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2020-09-24 21:12:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-24 21:12:58,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-09-24 21:12:58,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-09-24 21:12:58,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2020-09-24 21:12:58,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2020-09-24 21:12:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-09-24 21:12:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-09-24 21:12:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 21:12:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-09-24 21:12:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 21:12:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 21:12:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 21:12:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 21:12:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-09-24 21:12:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-09-24 21:12:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2020-09-24 21:12:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-09-24 21:12:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-09-24 21:12:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-09-24 21:12:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-09-24 21:12:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-09-24 21:12:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-09-24 21:12:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-09-24 21:12:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-09-24 21:12:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 21:12:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 21:12:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 21:12:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 21:12:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 21:12:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 21:12:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 21:12:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2020-09-24 21:12:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2020-09-24 21:12:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2020-09-24 21:12:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2020-09-24 21:12:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 21:12:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 21:12:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 21:12:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 21:12:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 21:12:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 21:12:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 21:12:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2020-09-24 21:12:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2020-09-24 21:12:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-09-24 21:12:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2020-09-24 21:12:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev [2020-09-24 21:12:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev [2020-09-24 21:12:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2020-09-24 21:12:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev [2020-09-24 21:12:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-09-24 21:12:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev [2020-09-24 21:12:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev [2020-09-24 21:12:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev [2020-09-24 21:12:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev [2020-09-24 21:12:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev [2020-09-24 21:12:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev [2020-09-24 21:12:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 21:12:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2020-09-24 21:12:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 21:12:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-24 21:12:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 21:12:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 21:12:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 21:12:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 21:12:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 21:12:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-09-24 21:12:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-24 21:12:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-24 21:12:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-24 21:12:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-24 21:12:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 21:12:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 21:12:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 21:12:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:12:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 21:12:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 21:12:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2020-09-24 21:12:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 21:12:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2020-09-24 21:12:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-24 21:12:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-09-24 21:12:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:12:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 21:12:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:12:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 21:12:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:12:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:12:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 21:12:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:12:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 21:12:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 21:12:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-24 21:12:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-24 21:12:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 21:12:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 21:12:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 21:12:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 21:12:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2020-09-24 21:12:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2020-09-24 21:12:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 21:12:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-09-24 21:12:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2020-09-24 21:12:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-09-24 21:12:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2020-09-24 21:12:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-09-24 21:12:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 21:12:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 21:12:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 21:12:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 21:12:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 21:12:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev [2020-09-24 21:12:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev [2020-09-24 21:12:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-24 21:12:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2020-09-24 21:12:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-09-24 21:12:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 21:12:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-09-24 21:12:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 21:12:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-09-24 21:12:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-24 21:12:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-24 21:12:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-24 21:12:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-24 21:12:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2020-09-24 21:12:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure m5632_recover [2020-09-24 21:12:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:12:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:12:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_prereset [2020-09-24 21:12:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_postreset [2020-09-24 21:12:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_init [2020-09-24 21:12:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_exit [2020-09-24 21:12:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 21:12:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-24 21:12:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 21:12:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 21:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-09-24 21:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 21:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 21:12:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 21:12:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 21:12:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-09-24 21:12:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-09-24 21:12:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-09-24 21:12:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-09-24 21:12:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-09-24 21:12:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-09-24 21:12:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-09-24 21:12:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-09-24 21:12:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-09-24 21:12:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 21:12:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 21:12:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 21:12:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 21:12:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 21:12:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2020-09-24 21:12:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2020-09-24 21:12:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2020-09-24 21:12:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2020-09-24 21:12:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 21:12:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 21:12:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 21:12:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 21:12:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2020-09-24 21:12:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2020-09-24 21:12:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-09-24 21:12:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2020-09-24 21:12:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev [2020-09-24 21:12:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev [2020-09-24 21:12:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2020-09-24 21:12:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev [2020-09-24 21:12:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-09-24 21:12:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev [2020-09-24 21:12:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev [2020-09-24 21:12:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev [2020-09-24 21:12:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev [2020-09-24 21:12:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:12:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 21:12:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:12:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:12:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 21:12:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:12:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:12:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:12:59,080 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 21:13:00,727 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:13:00,727 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:13:00,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:13:00 BoogieIcfgContainer [2020-09-24 21:13:00,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:13:00,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:13:00,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:13:00,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:13:00,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:12:56" (1/3) ... [2020-09-24 21:13:00,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4112a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:13:00, skipping insertion in model container [2020-09-24 21:13:00,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:58" (2/3) ... [2020-09-24 21:13:00,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4112a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:13:00, skipping insertion in model container [2020-09-24 21:13:00,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:13:00" (3/3) ... [2020-09-24 21:13:00,750 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-09-24 21:13:00,762 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:13:00,774 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:13:00,796 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:13:00,830 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:13:00,831 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:13:00,831 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:13:00,831 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:13:00,831 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:13:00,831 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:13:00,831 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:13:00,832 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:13:00,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states. [2020-09-24 21:13:00,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2020-09-24 21:13:00,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:13:00,942 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:13:00,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:13:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:13:00,952 INFO L82 PathProgramCache]: Analyzing trace with hash 942058458, now seen corresponding path program 1 times [2020-09-24 21:13:00,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:13:00,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667170291] [2020-09-24 21:13:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:13:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:02,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:04,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:06,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:07,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:07,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 910 [2020-09-24 21:13:07,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:13:07,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5268 [2020-09-24 21:13:07,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:13:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 838 [2020-09-24 21:13:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:13:07,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:13:08,209 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-09-24 21:13:08,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:13:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:08,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:08,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-09-24 21:13:08,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 687 [2020-09-24 21:13:08,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-09-24 21:13:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:10,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 21:13:10,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:10,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:10,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:13:10,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:10,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:10,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 21:13:10,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2020-09-24 21:13:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:10,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 21:13:10,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:10,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:13:10,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:10,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:13:10,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2020-09-24 21:13:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:10,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 21:13:10,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:10,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:13:10,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:10,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 21:13:10,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-09-24 21:13:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:10,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 21:13:10,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:13:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:10,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:10,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:10,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:10,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 21:13:10,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:10,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:10,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:10,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:13:11,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:11,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:13:11,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2020-09-24 21:13:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:11,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 21:13:11,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:11,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 21:13:11,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:11,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 21:13:11,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-09-24 21:13:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:11,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 21:13:11,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:11,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:13:11,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:11,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:13:11,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:11,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-09-24 21:13:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:13:11,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:13:11,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:11,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:11,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:11,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:11,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 792 [2020-09-24 21:13:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:11,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:13:11,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:11,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-24 21:13:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:13:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:13:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:13:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:12,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:12,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:12,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:12,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:12,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:12,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 21:13:12,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:12,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:13:12,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:12,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:13:12,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 834 [2020-09-24 21:13:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:12,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:12,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:12,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:13:12,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:12,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:13:12,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:13:12,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:12,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:12,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:13:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:12,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 21:13:12,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 21:13:12,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:13:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:12,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:12,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:12,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:12,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:13:12,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-09-24 21:13:13,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667170291] [2020-09-24 21:13:13,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:13:13,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:13:13,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074721352] [2020-09-24 21:13:13,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:13:13,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:13:13,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:13:13,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:13:13,165 INFO L87 Difference]: Start difference. First operand 1443 states. Second operand 11 states. [2020-09-24 21:13:13,585 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-09-24 21:13:20,236 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-09-24 21:13:20,612 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-09-24 21:13:20,992 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-09-24 21:13:21,339 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2020-09-24 21:13:21,820 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-09-24 21:13:22,287 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-09-24 21:13:25,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:13:25,156 INFO L93 Difference]: Finished difference Result 1585 states and 1765 transitions. [2020-09-24 21:13:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:13:25,158 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 851 [2020-09-24 21:13:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:13:25,194 INFO L225 Difference]: With dead ends: 1585 [2020-09-24 21:13:25,194 INFO L226 Difference]: Without dead ends: 1108 [2020-09-24 21:13:25,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:13:25,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-09-24 21:13:25,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1087. [2020-09-24 21:13:25,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-09-24 21:13:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1149 transitions. [2020-09-24 21:13:25,380 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1149 transitions. Word has length 851 [2020-09-24 21:13:25,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:13:25,384 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1149 transitions. [2020-09-24 21:13:25,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:13:25,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1149 transitions. [2020-09-24 21:13:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-09-24 21:13:25,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:13:25,458 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:13:25,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:13:25,459 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:13:25,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:13:25,459 INFO L82 PathProgramCache]: Analyzing trace with hash 187022492, now seen corresponding path program 1 times [2020-09-24 21:13:25,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:13:25,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120609259] [2020-09-24 21:13:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:13:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:26,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:28,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:31,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:31,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 914 [2020-09-24 21:13:31,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:13:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5177 [2020-09-24 21:13:31,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:13:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 838 [2020-09-24 21:13:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:13:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:31,683 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-09-24 21:13:31,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:13:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:31,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:32,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:32,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-09-24 21:13:32,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-09-24 21:13:32,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:32,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:33,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-09-24 21:13:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:13:33,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:33,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:13:33,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:33,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:13:33,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2020-09-24 21:13:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:33,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 21:13:33,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:33,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:13:33,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:33,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:13:33,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:33,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2020-09-24 21:13:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:33,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 21:13:33,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:33,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:13:33,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:33,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 21:13:33,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-09-24 21:13:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:33,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:13:33,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:33,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:13:33,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:33,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 21:13:33,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2020-09-24 21:13:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:13:33,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:33,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:33,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:33,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:33,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:13:33,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:33,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:33,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:33,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:34,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:13:34,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:34,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:34,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-09-24 21:13:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 21:13:34,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 21:13:34,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:34,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:34,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:34,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:13:34,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:34,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:34,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:34,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:13:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:34,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:13:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:13:34,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:34,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-09-24 21:13:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:34,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:13:34,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:13:34,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:34,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:34,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:34,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 792 [2020-09-24 21:13:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:34,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:13:34,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 21:13:34,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:13:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:13:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 21:13:34,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:34,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:13:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:34,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:34,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:34,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:13:34,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:34,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 21:13:34,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:34,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:13:34,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:13:34,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:34,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-09-24 21:13:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:35,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:13:35,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 21:13:35,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:13:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:35,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:13:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:35,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 21:13:35,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 21:13:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:35,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:13:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:35,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:35,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:13:35,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:13:35,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:13:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:13:35,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:13:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-09-24 21:13:36,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120609259] [2020-09-24 21:13:36,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:13:36,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 21:13:36,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493546320] [2020-09-24 21:13:36,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:13:36,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:13:36,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:13:36,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:13:36,159 INFO L87 Difference]: Start difference. First operand 1087 states and 1149 transitions. Second operand 12 states. [2020-09-24 21:13:36,514 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-09-24 21:13:41,698 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-09-24 21:13:42,145 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-09-24 21:13:42,562 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2020-09-24 21:13:42,989 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 235