/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 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 17:52:06,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:52:06,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:52:07,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:52:07,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:52:07,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:52:07,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:52:07,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:52:07,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:52:07,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:52:07,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:52:07,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:52:07,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:52:07,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:52:07,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:52:07,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:52:07,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:52:07,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:52:07,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:52:07,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:52:07,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:52:07,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:52:07,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:52:07,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:52:07,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:52:07,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:52:07,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:52:07,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:52:07,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:52:07,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:52:07,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:52:07,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:52:07,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:52:07,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:52:07,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:52:07,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:52:07,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:52:07,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:52:07,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:52:07,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:52:07,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:52:07,055 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 17:52:07,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:52:07,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:52:07,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:52:07,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:52:07,117 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:52:07,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:52:07,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:52:07,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:52:07,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:52:07,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:52:07,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:52:07,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:52:07,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:52:07,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:52:07,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:52:07,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:52:07,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:52:07,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:52:07,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:52:07,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:52:07,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:52:07,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:52:07,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:52:07,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:52:07,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:52:07,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:52:07,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 17:52:07,123 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;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;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;log-additional-information=true; [2020-09-24 17:52:07,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:52:07,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:52:07,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:52:07,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:52:07,608 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:52:07,609 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-09-24 17:52:07,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f11140801/904719c8e9dd4e6fb3d00f74ec3b0cfe/FLAG1e1afbe51 [2020-09-24 17:52:08,547 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:52:08,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2020-09-24 17:52:08,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f11140801/904719c8e9dd4e6fb3d00f74ec3b0cfe/FLAG1e1afbe51 [2020-09-24 17:52:09,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f11140801/904719c8e9dd4e6fb3d00f74ec3b0cfe [2020-09-24 17:52:09,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:52:09,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:52:09,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:52:09,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:52:09,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:52:09,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:52:09" (1/1) ... [2020-09-24 17:52:09,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@83bebeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:09, skipping insertion in model container [2020-09-24 17:52:09,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:52:09" (1/1) ... [2020-09-24 17:52:09,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:52:09,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:52:10,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:52:10,932 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:52:11,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:52:11,274 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:52:11,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11 WrapperNode [2020-09-24 17:52:11,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:52:11,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:52:11,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:52:11,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:52:11,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (1/1) ... [2020-09-24 17:52:11,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:52:11,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:52:11,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:52:11,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:52:11,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (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 17:52:11,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:52:11,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:52:11,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:52:11,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 17:52:11,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 17:52:11,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-24 17:52:11,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-24 17:52:11,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 17:52:11,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 17:52:11,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 17:52:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2020-09-24 17:52:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure m5632_recover [2020-09-24 17:52:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_prereset [2020-09-24 17:52:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_postreset [2020-09-24 17:52:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_init [2020-09-24 17:52:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_subset_driver_exit [2020-09-24 17:52:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-24 17:52:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:52:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-09-24 17:52:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2020-09-24 17:52:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2020-09-24 17:52:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2020-09-24 17:52:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-24 17:52:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-09-24 17:52:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-09-24 17:52:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_12 [2020-09-24 17:52:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___ldv_usb_unlock_device_13 [2020-09-24 17:52:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-09-24 17:52:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-09-24 17:52:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 17:52:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2020-09-24 17:52:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 17:52:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 17:52:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 17:52:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 17:52:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-09-24 17:52:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-09-24 17:52:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2020-09-24 17:52:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-09-24 17:52:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-09-24 17:52:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-09-24 17:52:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-09-24 17:52:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-09-24 17:52:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-09-24 17:52:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-09-24 17:52:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-09-24 17:52:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 17:52:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 17:52:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 17:52:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 17:52:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 17:52:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 17:52:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 17:52:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2020-09-24 17:52:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2020-09-24 17:52:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2020-09-24 17:52:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2020-09-24 17:52:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 17:52:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 17:52:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 17:52:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 17:52:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 17:52:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 17:52:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 17:52:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2020-09-24 17:52:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2020-09-24 17:52:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-09-24 17:52:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2020-09-24 17:52:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_udev [2020-09-24 17:52:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_udev [2020-09-24 17:52:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2020-09-24 17:52:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_udev [2020-09-24 17:52:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-09-24 17:52:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_udev [2020-09-24 17:52:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_udev [2020-09-24 17:52:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_udev [2020-09-24 17:52:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_udev [2020-09-24 17:52:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_udev [2020-09-24 17:52:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_udev [2020-09-24 17:52:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 17:52:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_usb_unlock_device [2020-09-24 17:52:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 17:52:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-24 17:52:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 17:52:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 17:52:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 17:52:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 17:52:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 17:52:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-09-24 17:52:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-24 17:52:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-24 17:52:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-24 17:52:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-24 17:52:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 17:52:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 17:52:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 17:52:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:52:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 17:52:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 17:52:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2020-09-24 17:52:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 17:52:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2020-09-24 17:52:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-24 17:52:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-09-24 17:52:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:52:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 17:52:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:52:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 17:52:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:52:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:52:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 17:52:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:52:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 17:52:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 17:52:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-24 17:52:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-24 17:52:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 17:52:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 17:52:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 17:52:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 17:52:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_usb_unlock_device [2020-09-24 17:52:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___ldv_usb_unlock_device_13 [2020-09-24 17:52:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 17:52:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-09-24 17:52:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2020-09-24 17:52:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-09-24 17:52:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2020-09-24 17:52:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2020-09-24 17:52:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 17:52:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 17:52:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 17:52:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 17:52:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 17:52:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_udev [2020-09-24 17:52:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_udev [2020-09-24 17:52:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-24 17:52:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_12 [2020-09-24 17:52:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-09-24 17:52:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 17:52:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-09-24 17:52:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 17:52:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-09-24 17:52:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-24 17:52:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-24 17:52:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-24 17:52:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-24 17:52:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2020-09-24 17:52:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure m5632_recover [2020-09-24 17:52:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:52:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:52:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_prereset [2020-09-24 17:52:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_postreset [2020-09-24 17:52:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_init [2020-09-24 17:52:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_subset_driver_exit [2020-09-24 17:52:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 17:52:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-24 17:52:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 17:52:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:52:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:52:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:52:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2020-09-24 17:52:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2020-09-24 17:52:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2020-09-24 17:52:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2020-09-24 17:52:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2020-09-24 17:52:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2020-09-24 17:52:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2020-09-24 17:52:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2020-09-24 17:52:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2020-09-24 17:52:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 17:52:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 17:52:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 17:52:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 17:52:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2020-09-24 17:52:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_udev [2020-09-24 17:52:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_udev [2020-09-24 17:52:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2020-09-24 17:52:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_udev [2020-09-24 17:52:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_udev [2020-09-24 17:52:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_udev [2020-09-24 17:52:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_udev [2020-09-24 17:52:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_udev [2020-09-24 17:52:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_udev [2020-09-24 17:52:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:52:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 17:52:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:52:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:52:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 17:52:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:52:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:52:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:52:12,250 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 17:52:13,881 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:52:13,881 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:52:13,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:52:13 BoogieIcfgContainer [2020-09-24 17:52:13,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:52:13,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:52:13,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:52:13,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:52:13,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:52:09" (1/3) ... [2020-09-24 17:52:13,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@855f987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:52:13, skipping insertion in model container [2020-09-24 17:52:13,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:52:11" (2/3) ... [2020-09-24 17:52:13,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@855f987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:52:13, skipping insertion in model container [2020-09-24 17:52:13,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:52:13" (3/3) ... [2020-09-24 17:52:13,902 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 17:52:13,913 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:52:13,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:52:13,947 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:52:13,983 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:52:13,983 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:52:13,983 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:52:13,983 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:52:13,984 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:52:13,984 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:52:13,984 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:52:13,984 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:52:14,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states. [2020-09-24 17:52:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2020-09-24 17:52:14,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:52:14,144 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 17:52:14,145 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:52:14,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:52:14,154 INFO L82 PathProgramCache]: Analyzing trace with hash 942058458, now seen corresponding path program 1 times [2020-09-24 17:52:14,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:52:14,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604584437] [2020-09-24 17:52:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:52:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:20,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:32,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:32,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 910 [2020-09-24 17:52:32,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:52:32,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17416 [2020-09-24 17:52:32,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:32,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:32,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 634 [2020-09-24 17:52:32,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 272 [2020-09-24 17:52:32,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:52:33,457 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-09-24 17:52:33,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:52:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:33,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:34,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:34,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-09-24 17:52:34,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1129 [2020-09-24 17:52:34,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 630 [2020-09-24 17:52:34,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:35,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-09-24 17:52:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:35,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:35,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:52:35,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:35,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 17:52:35,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:52:35,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:35,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:35,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:35,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:35,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:35,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:52:35,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:35,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:35,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:35,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 17:52:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:35,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:35,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:35,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:35,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 17:52:35,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:35,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:35,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2020-09-24 17:52:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:35,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:35,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:52:35,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:35,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 17:52:35,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:35,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:52:35,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:35,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:35,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:35,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:35,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:35,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:52:35,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:35,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:35,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:35,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 17:52:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:35,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:35,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:35,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:35,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 17:52:35,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:35,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:35,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 701 [2020-09-24 17:52:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:35,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:52:36,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 17:52:36,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:52:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 17:52:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 17:52:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:36,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 17:52:36,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-09-24 17:52:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:52:36,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 17:52:36,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:52:36,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:36,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:52:36,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 17:52:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:36,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 17:52:36,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2020-09-24 17:52:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:52:36,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 17:52:36,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:52:36,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:36,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 17:52:36,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:36,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 17:52:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:36,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 17:52:36,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-09-24 17:52:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 17:52:36,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 17:52:36,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:52:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:36,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:36,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:52:36,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 17:52:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:36,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 17:52:36,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-09-24 17:52:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:36,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:36,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:36,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:52:36,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:36,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 17:52:36,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:36,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:36,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:36,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:52:36,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:37,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 792 [2020-09-24 17:52:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:37,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:37,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:37,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:52:37,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:52:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 17:52:37,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:52:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 17:52:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:52:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:37,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 17:52:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:37,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:37,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:37,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:52:37,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:37,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 17:52:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:52:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:52:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 834 [2020-09-24 17:52:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:37,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:37,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:52:37,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:37,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 17:52:37,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:37,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 17:52:37,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:37,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:52:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:37,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:37,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:52:37,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:52:37,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:37,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 17:52:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:37,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:37,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:37,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:52:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 17:52:37,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:52:38,423 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 17:52:38,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604584437] [2020-09-24 17:52:38,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:52:38,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 17:52:38,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809617623] [2020-09-24 17:52:38,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 17:52:38,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:52:38,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 17:52:38,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:52:38,450 INFO L87 Difference]: Start difference. First operand 1443 states. Second operand 12 states. [2020-09-24 17:52:38,831 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-09-24 17:52:43,310 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-09-24 17:52:43,874 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-09-24 17:52:44,782 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-09-24 17:52:45,328 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-09-24 17:52:45,795 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-09-24 17:52:46,225 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2020-09-24 17:52:46,770 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-09-24 17:52:47,312 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-09-24 17:52:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:52:49,576 INFO L93 Difference]: Finished difference Result 1584 states and 1763 transitions. [2020-09-24 17:52:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 17:52:49,579 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 851 [2020-09-24 17:52:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:52:49,635 INFO L225 Difference]: With dead ends: 1584 [2020-09-24 17:52:49,635 INFO L226 Difference]: Without dead ends: 1107 [2020-09-24 17:52:49,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=206, Invalid=550, Unknown=0, NotChecked=0, Total=756 [2020-09-24 17:52:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2020-09-24 17:52:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1086. [2020-09-24 17:52:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-09-24 17:52:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1147 transitions. [2020-09-24 17:52:49,845 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1147 transitions. Word has length 851 [2020-09-24 17:52:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:52:49,848 INFO L479 AbstractCegarLoop]: Abstraction has 1086 states and 1147 transitions. [2020-09-24 17:52:49,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 17:52:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1147 transitions. [2020-09-24 17:52:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2020-09-24 17:52:49,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:52:49,881 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, 1] [2020-09-24 17:52:49,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:52:49,881 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:52:49,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:52:49,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1502541369, now seen corresponding path program 1 times [2020-09-24 17:52:49,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:52:49,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642748050] [2020-09-24 17:52:49,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:52:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:50,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:51,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:52,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking...