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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:18:48,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:18:48,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:18:48,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:18:48,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:18:48,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:18:48,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:18:48,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:18:48,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:18:48,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:18:48,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:18:48,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:18:48,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:18:48,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:18:48,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:18:48,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:18:48,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:18:48,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:18:48,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:18:48,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:18:48,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:18:48,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:18:48,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:18:48,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:18:48,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:18:48,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:18:48,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:18:48,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:18:48,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:18:48,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:18:48,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:18:48,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:18:48,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:18:48,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:18:48,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:18:48,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:18:48,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:18:48,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:18:48,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:18:48,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:18:48,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:18:48,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 18:18:48,831 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:18:48,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:18:48,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:18:48,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:18:48,833 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:18:48,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:18:48,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:18:48,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:18:48,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:18:48,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:18:48,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:18:48,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:18:48,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:18:48,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:18:48,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:18:48,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:18:48,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:18:48,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:18:48,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:18:48,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:18:48,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:18:48,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:18:48,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:18:48,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:18:48,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:18:48,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:18:48,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:18:48,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:18:48,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:18:49,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:18:49,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:18:49,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:18:49,129 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:18:49,130 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:18:49,131 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2019-10-13 18:18:49,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f756cd0/c7fd5ffa40574e4fb6b238a368021a46/FLAGd74dad04f [2019-10-13 18:18:49,923 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:18:49,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2019-10-13 18:18:49,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f756cd0/c7fd5ffa40574e4fb6b238a368021a46/FLAGd74dad04f [2019-10-13 18:18:50,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f756cd0/c7fd5ffa40574e4fb6b238a368021a46 [2019-10-13 18:18:50,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:18:50,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:18:50,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:18:50,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:18:50,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:18:50,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:18:50" (1/1) ... [2019-10-13 18:18:50,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69fad3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:50, skipping insertion in model container [2019-10-13 18:18:50,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:18:50" (1/1) ... [2019-10-13 18:18:50,145 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:18:50,234 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:18:51,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:18:51,372 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:18:51,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:18:51,598 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:18:51,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51 WrapperNode [2019-10-13 18:18:51,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:18:51,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:18:51,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:18:51,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:18:51,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... [2019-10-13 18:18:51,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:18:51,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:18:51,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:18:51,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:18:51,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 18:18:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:18:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:18:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2019-10-13 18:18:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 18:18:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 18:18:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2019-10-13 18:18:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2019-10-13 18:18:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2019-10-13 18:18:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2019-10-13 18:18:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2019-10-13 18:18:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2019-10-13 18:18:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2019-10-13 18:18:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2019-10-13 18:18:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2019-10-13 18:18:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2019-10-13 18:18:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:18:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-13 18:18:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-13 18:18:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-13 18:18:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-13 18:18:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-13 18:18:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-13 18:18:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 18:18:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 18:18:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-13 18:18:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-10-13 18:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 18:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 18:18:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 18:18:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 18:18:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 18:18:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2019-10-13 18:18:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 18:18:51,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 18:18:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 18:18:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 18:18:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:18:51,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:18:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 18:18:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 18:18:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 18:18:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 18:18:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2019-10-13 18:18:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2019-10-13 18:18:51,843 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2019-10-13 18:18:51,843 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2019-10-13 18:18:51,843 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2019-10-13 18:18:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 18:18:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 18:18:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 18:18:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2019-10-13 18:18:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2019-10-13 18:18:51,845 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2019-10-13 18:18:51,845 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2019-10-13 18:18:51,845 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2019-10-13 18:18:51,846 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:18:51,846 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:18:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:18:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:18:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 18:18:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 18:18:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 18:18:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 18:18:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-13 18:18:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 18:18:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-13 18:18:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-13 18:18:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-13 18:18:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2019-10-13 18:18:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 18:18:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 18:18:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 18:18:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2019-10-13 18:18:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2019-10-13 18:18:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2019-10-13 18:18:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2019-10-13 18:18:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2019-10-13 18:18:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2019-10-13 18:18:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2019-10-13 18:18:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2019-10-13 18:18:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2019-10-13 18:18:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2019-10-13 18:18:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2019-10-13 18:18:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2019-10-13 18:18:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2019-10-13 18:18:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:18:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2019-10-13 18:18:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2019-10-13 18:18:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:18:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2019-10-13 18:18:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2019-10-13 18:18:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:18:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:18:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:18:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2019-10-13 18:18:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2019-10-13 18:18:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2019-10-13 18:18:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:18:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:18:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:18:51,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:18:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:18:51,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2019-10-13 18:18:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2019-10-13 18:18:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2019-10-13 18:18:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2019-10-13 18:18:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2019-10-13 18:18:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 18:18:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 18:18:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 18:18:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 18:18:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:18:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:18:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:18:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:18:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:18:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:18:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:18:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:18:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:18:53,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:18:53,425 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 18:18:53,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:18:53 BoogieIcfgContainer [2019-10-13 18:18:53,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:18:53,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:18:53,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:18:53,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:18:53,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:18:50" (1/3) ... [2019-10-13 18:18:53,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40afd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:18:53, skipping insertion in model container [2019-10-13 18:18:53,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:51" (2/3) ... [2019-10-13 18:18:53,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40afd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:18:53, skipping insertion in model container [2019-10-13 18:18:53,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:18:53" (3/3) ... [2019-10-13 18:18:53,435 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2019-10-13 18:18:53,445 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:18:53,457 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:18:53,469 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:18:53,509 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:18:53,509 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:18:53,509 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:18:53,509 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:18:53,509 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:18:53,510 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:18:53,510 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:18:53,510 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:18:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states. [2019-10-13 18:18:53,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 18:18:53,560 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:18:53,562 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:18:53,563 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:18:53,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:18:53,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1116245985, now seen corresponding path program 1 times [2019-10-13 18:18:53,580 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:18:53,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782611921] [2019-10-13 18:18:53,581 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:18:53,581 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:18:53,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:18:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:54,386 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:18:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:18:54,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782611921] [2019-10-13 18:18:54,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:18:54,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:18:54,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60090415] [2019-10-13 18:18:54,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:18:54,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:18:54,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:18:54,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:18:54,551 INFO L87 Difference]: Start difference. First operand 388 states. Second operand 5 states. [2019-10-13 18:18:55,102 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:18:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:18:57,923 INFO L93 Difference]: Finished difference Result 788 states and 992 transitions. [2019-10-13 18:18:57,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:18:57,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-13 18:18:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:18:57,944 INFO L225 Difference]: With dead ends: 788 [2019-10-13 18:18:57,945 INFO L226 Difference]: Without dead ends: 509 [2019-10-13 18:18:57,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:18:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2019-10-13 18:18:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 505. [2019-10-13 18:18:58,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2019-10-13 18:18:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 613 transitions. [2019-10-13 18:18:58,111 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 613 transitions. Word has length 29 [2019-10-13 18:18:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:18:58,112 INFO L462 AbstractCegarLoop]: Abstraction has 505 states and 613 transitions. [2019-10-13 18:18:58,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:18:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 613 transitions. [2019-10-13 18:18:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-13 18:18:58,115 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:18:58,115 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:18:58,115 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:18:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:18:58,116 INFO L82 PathProgramCache]: Analyzing trace with hash 359589180, now seen corresponding path program 1 times [2019-10-13 18:18:58,116 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:18:58,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854403863] [2019-10-13 18:18:58,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:18:58,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:18:58,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:18:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:58,435 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:18:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:18:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:18:58,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854403863] [2019-10-13 18:18:58,516 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:18:58,516 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:18:58,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076046805] [2019-10-13 18:18:58,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:18:58,519 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:18:58,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:18:58,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:18:58,519 INFO L87 Difference]: Start difference. First operand 505 states and 613 transitions. Second operand 5 states. [2019-10-13 18:18:58,883 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:19:00,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:19:00,270 INFO L93 Difference]: Finished difference Result 507 states and 614 transitions. [2019-10-13 18:19:00,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 18:19:00,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-13 18:19:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:19:00,278 INFO L225 Difference]: With dead ends: 507 [2019-10-13 18:19:00,278 INFO L226 Difference]: Without dead ends: 504 [2019-10-13 18:19:00,280 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:19:00,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-13 18:19:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2019-10-13 18:19:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2019-10-13 18:19:00,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 611 transitions. [2019-10-13 18:19:00,359 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 611 transitions. Word has length 34 [2019-10-13 18:19:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:19:00,359 INFO L462 AbstractCegarLoop]: Abstraction has 504 states and 611 transitions. [2019-10-13 18:19:00,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:19:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 611 transitions. [2019-10-13 18:19:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-13 18:19:00,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:19:00,361 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:19:00,362 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:19:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:19:00,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1737919780, now seen corresponding path program 1 times [2019-10-13 18:19:00,362 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:19:00,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512204952] [2019-10-13 18:19:00,363 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:00,363 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:00,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:19:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:00,652 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:19:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:19:00,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512204952] [2019-10-13 18:19:00,727 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:19:00,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:19:00,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791010677] [2019-10-13 18:19:00,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:19:00,729 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:19:00,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:19:00,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:19:00,729 INFO L87 Difference]: Start difference. First operand 504 states and 611 transitions. Second operand 5 states. [2019-10-13 18:19:01,137 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:19:02,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:19:02,507 INFO L93 Difference]: Finished difference Result 506 states and 612 transitions. [2019-10-13 18:19:02,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 18:19:02,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-10-13 18:19:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:19:02,513 INFO L225 Difference]: With dead ends: 506 [2019-10-13 18:19:02,513 INFO L226 Difference]: Without dead ends: 503 [2019-10-13 18:19:02,514 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:19:02,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-10-13 18:19:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2019-10-13 18:19:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-13 18:19:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 609 transitions. [2019-10-13 18:19:02,584 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 609 transitions. Word has length 35 [2019-10-13 18:19:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:19:02,584 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 609 transitions. [2019-10-13 18:19:02,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:19:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 609 transitions. [2019-10-13 18:19:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-13 18:19:02,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:19:02,587 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:19:02,587 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:19:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:19:02,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1958784063, now seen corresponding path program 1 times [2019-10-13 18:19:02,588 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:19:02,588 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188901962] [2019-10-13 18:19:02,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:02,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:02,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:19:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:02,930 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:19:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:19:02,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188901962] [2019-10-13 18:19:02,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:19:02,996 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:19:02,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878337966] [2019-10-13 18:19:02,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:19:02,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:19:02,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:19:02,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:19:02,998 INFO L87 Difference]: Start difference. First operand 503 states and 609 transitions. Second operand 5 states. [2019-10-13 18:19:03,346 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:19:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:19:04,705 INFO L93 Difference]: Finished difference Result 507 states and 611 transitions. [2019-10-13 18:19:04,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 18:19:04,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-10-13 18:19:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:19:04,709 INFO L225 Difference]: With dead ends: 507 [2019-10-13 18:19:04,709 INFO L226 Difference]: Without dead ends: 503 [2019-10-13 18:19:04,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:19:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-10-13 18:19:04,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501. [2019-10-13 18:19:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-10-13 18:19:04,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 604 transitions. [2019-10-13 18:19:04,763 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 604 transitions. Word has length 36 [2019-10-13 18:19:04,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:19:04,764 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 604 transitions. [2019-10-13 18:19:04,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:19:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 604 transitions. [2019-10-13 18:19:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-13 18:19:04,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:19:04,766 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:19:04,766 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:19:04,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:19:04,766 INFO L82 PathProgramCache]: Analyzing trace with hash 592491071, now seen corresponding path program 1 times [2019-10-13 18:19:04,766 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:19:04,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774635512] [2019-10-13 18:19:04,767 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:04,767 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:04,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:19:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:05,015 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:19:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:19:05,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774635512] [2019-10-13 18:19:05,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:19:05,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:19:05,063 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273159725] [2019-10-13 18:19:05,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:19:05,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:19:05,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:19:05,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:19:05,064 INFO L87 Difference]: Start difference. First operand 501 states and 604 transitions. Second operand 5 states. [2019-10-13 18:19:05,483 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:19:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:19:06,790 INFO L93 Difference]: Finished difference Result 503 states and 605 transitions. [2019-10-13 18:19:06,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 18:19:06,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-13 18:19:06,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:19:06,798 INFO L225 Difference]: With dead ends: 503 [2019-10-13 18:19:06,799 INFO L226 Difference]: Without dead ends: 487 [2019-10-13 18:19:06,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:19:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-10-13 18:19:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2019-10-13 18:19:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2019-10-13 18:19:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 587 transitions. [2019-10-13 18:19:06,873 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 587 transitions. Word has length 37 [2019-10-13 18:19:06,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:19:06,874 INFO L462 AbstractCegarLoop]: Abstraction has 487 states and 587 transitions. [2019-10-13 18:19:06,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:19:06,874 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 587 transitions. [2019-10-13 18:19:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 18:19:06,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:19:06,880 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:19:06,880 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:19:06,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:19:06,881 INFO L82 PathProgramCache]: Analyzing trace with hash 483468836, now seen corresponding path program 1 times [2019-10-13 18:19:06,881 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:19:06,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289126602] [2019-10-13 18:19:06,881 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:06,881 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:06,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:19:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,160 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:19:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:07,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:19:07,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289126602] [2019-10-13 18:19:07,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:19:07,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 18:19:07,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400320114] [2019-10-13 18:19:07,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 18:19:07,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:19:07,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 18:19:07,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 18:19:07,254 INFO L87 Difference]: Start difference. First operand 487 states and 587 transitions. Second operand 6 states. [2019-10-13 18:19:07,552 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:19:09,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:19:09,790 INFO L93 Difference]: Finished difference Result 1251 states and 1514 transitions. [2019-10-13 18:19:09,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:19:09,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-10-13 18:19:09,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:19:09,796 INFO L225 Difference]: With dead ends: 1251 [2019-10-13 18:19:09,796 INFO L226 Difference]: Without dead ends: 775 [2019-10-13 18:19:09,799 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:19:09,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2019-10-13 18:19:09,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2019-10-13 18:19:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 775 states. [2019-10-13 18:19:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 936 transitions. [2019-10-13 18:19:09,903 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 936 transitions. Word has length 60 [2019-10-13 18:19:09,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:19:09,904 INFO L462 AbstractCegarLoop]: Abstraction has 775 states and 936 transitions. [2019-10-13 18:19:09,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 18:19:09,904 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 936 transitions. [2019-10-13 18:19:09,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 18:19:09,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:19:09,909 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:19:09,909 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:19:09,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:19:09,909 INFO L82 PathProgramCache]: Analyzing trace with hash -991918517, now seen corresponding path program 1 times [2019-10-13 18:19:09,910 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:19:09,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789017796] [2019-10-13 18:19:09,910 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:09,910 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:19:09,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:19:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,252 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:19:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:19:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 18:19:10,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789017796] [2019-10-13 18:19:10,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:19:10,366 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 18:19:10,366 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363185679] [2019-10-13 18:19:10,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 18:19:10,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:19:10,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 18:19:10,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 18:19:10,368 INFO L87 Difference]: Start difference. First operand 775 states and 936 transitions. Second operand 6 states. [2019-10-13 18:19:11,642 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 18:19:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:19:12,070 INFO L93 Difference]: Finished difference Result 775 states and 936 transitions. [2019-10-13 18:19:12,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 18:19:12,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-10-13 18:19:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:19:12,071 INFO L225 Difference]: With dead ends: 775 [2019-10-13 18:19:12,071 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 18:19:12,073 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:19:12,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 18:19:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 18:19:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 18:19:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 18:19:12,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2019-10-13 18:19:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:19:12,074 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 18:19:12,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 18:19:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 18:19:12,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 18:19:12,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 18:19:14,347 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:14,515 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:14,841 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:15,161 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 17 [2019-10-13 18:19:15,525 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:15,803 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:16,026 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:16,178 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:16,468 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 17 [2019-10-13 18:19:16,628 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 44 [2019-10-13 18:19:16,776 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:17,055 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:17,205 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:17,359 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 1 [2019-10-13 18:19:17,536 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:17,695 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:17,882 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:18,022 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:18,173 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 44 [2019-10-13 18:19:18,299 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 1 [2019-10-13 18:19:18,428 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 18 [2019-10-13 18:19:18,745 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 21 [2019-10-13 18:19:18,923 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:19,074 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:19,248 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:19,408 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 1 [2019-10-13 18:19:19,585 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:19,882 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 17 [2019-10-13 18:19:20,034 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:20,184 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:20,368 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:20,517 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:20,789 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:20,966 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:21,113 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:21,300 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:21,479 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 1 [2019-10-13 18:19:21,623 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 1 [2019-10-13 18:19:21,856 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 18:19:22,142 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 17 [2019-10-13 18:19:22,339 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 1 [2019-10-13 18:19:22,495 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:22,626 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 1 [2019-10-13 18:19:22,775 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:22,924 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:23,102 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:23,241 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 1 [2019-10-13 18:19:23,422 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:23,706 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 17 [2019-10-13 18:19:23,863 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2019-10-13 18:19:24,132 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:24,403 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2019-10-13 18:19:24,544 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 1 [2019-10-13 18:19:24,691 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 1