/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:33:40,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:33:40,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:33:40,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:33:40,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:33:40,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:33:40,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:33:40,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:33:40,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:33:40,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:33:40,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:33:40,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:33:40,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:33:40,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:33:40,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:33:40,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:33:40,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:33:40,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:33:40,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:33:40,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:33:40,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:33:40,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:33:40,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:33:40,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:33:40,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:33:40,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:33:40,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:33:40,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:33:40,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:33:40,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:33:40,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:33:40,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:33:40,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:33:40,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:33:40,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:33:40,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:33:40,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:33:40,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:33:40,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:33:40,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:33:40,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:33:40,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 00:33:40,503 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:33:40,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:33:40,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:33:40,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:33:40,507 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:33:40,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:33:40,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:33:40,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:33:40,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:33:40,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:33:40,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:33:40,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:33:40,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:33:40,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:33:40,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:33:40,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:33:40,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:33:40,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:33:40,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:33:40,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:33:40,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:33:40,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:33:40,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:33:40,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:33:40,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:33:40,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:33:40,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 00:33:40,514 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-25 00:33:41,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:33:41,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:33:41,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:33:41,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:33:41,045 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:33:41,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-25 00:33:41,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e53f4ab52/d55447c4c4fe4b379cb7df0b94566ff1/FLAG354b05227 [2020-09-25 00:33:41,922 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:33:41,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-25 00:33:41,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e53f4ab52/d55447c4c4fe4b379cb7df0b94566ff1/FLAG354b05227 [2020-09-25 00:33:42,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e53f4ab52/d55447c4c4fe4b379cb7df0b94566ff1 [2020-09-25 00:33:42,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:33:42,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:33:42,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:33:42,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:33:42,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:33:42,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:33:42" (1/1) ... [2020-09-25 00:33:42,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f98ced9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:42, skipping insertion in model container [2020-09-25 00:33:42,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:33:42" (1/1) ... [2020-09-25 00:33:42,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:33:42,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:33:43,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:33:43,377 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:33:43,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:33:43,620 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:33:43,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43 WrapperNode [2020-09-25 00:33:43,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:33:43,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:33:43,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:33:43,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:33:43,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... [2020-09-25 00:33:43,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:33:43,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:33:43,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:33:43,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:33:43,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:33:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:33:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:33:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-25 00:33:43,915 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-25 00:33:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-25 00:33:43,916 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2020-09-25 00:33:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2020-09-25 00:33:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2020-09-25 00:33:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2020-09-25 00:33:43,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2020-09-25 00:33:43,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2020-09-25 00:33:43,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2020-09-25 00:33:43,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2020-09-25 00:33:43,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2020-09-25 00:33:43,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2020-09-25 00:33:43,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:33:43,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-25 00:33:43,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-25 00:33:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-25 00:33:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-25 00:33:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-25 00:33:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-25 00:33:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-25 00:33:43,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-09-25 00:33:43,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-25 00:33:43,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-09-25 00:33:43,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-09-25 00:33:43,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 00:33:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 00:33:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 00:33:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-25 00:33:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-25 00:33:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-25 00:33:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-25 00:33:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-25 00:33:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-25 00:33:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 00:33:43,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 00:33:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 00:33:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 00:33:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 00:33:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 00:33:43,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 00:33:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 00:33:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 00:33:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-09-25 00:33:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-25 00:33:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 00:33:43,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 00:33:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 00:33:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 00:33:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2020-09-25 00:33:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2020-09-25 00:33:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2020-09-25 00:33:43,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2020-09-25 00:33:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2020-09-25 00:33:43,932 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 00:33:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-25 00:33:43,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 00:33:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2020-09-25 00:33:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2020-09-25 00:33:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2020-09-25 00:33:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2020-09-25 00:33:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2020-09-25 00:33:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 00:33:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:33:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 00:33:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-25 00:33:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-25 00:33:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-25 00:33:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-25 00:33:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-09-25 00:33:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 00:33:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-25 00:33:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-25 00:33:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-25 00:33:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-09-25 00:33:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-09-25 00:33:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-25 00:33:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-25 00:33:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-25 00:33:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-25 00:33:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 00:33:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 00:33:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 00:33:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:33:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2020-09-25 00:33:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 00:33:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 00:33:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-25 00:33:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2020-09-25 00:33:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2020-09-25 00:33:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2020-09-25 00:33:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2020-09-25 00:33:43,942 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2020-09-25 00:33:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2020-09-25 00:33:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2020-09-25 00:33:43,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2020-09-25 00:33:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2020-09-25 00:33:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2020-09-25 00:33:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2020-09-25 00:33:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2020-09-25 00:33:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-25 00:33:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:33:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2020-09-25 00:33:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2020-09-25 00:33:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:33:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2020-09-25 00:33:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2020-09-25 00:33:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:33:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:33:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:33:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2020-09-25 00:33:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2020-09-25 00:33:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2020-09-25 00:33:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 00:33:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 00:33:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:33:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 00:33:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 00:33:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 00:33:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 00:33:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-25 00:33:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-25 00:33:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 00:33:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-25 00:33:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-25 00:33:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-25 00:33:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-25 00:33:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-25 00:33:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-25 00:33:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 00:33:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 00:33:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 00:33:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 00:33:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 00:33:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:33:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:33:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 00:33:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 00:33:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:33:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:33:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 00:33:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:33:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:33:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 00:33:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:33:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:33:46,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:33:46,126 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:33:46,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:33:46 BoogieIcfgContainer [2020-09-25 00:33:46,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:33:46,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:33:46,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:33:46,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:33:46,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:33:42" (1/3) ... [2020-09-25 00:33:46,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d4d340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:33:46, skipping insertion in model container [2020-09-25 00:33:46,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:43" (2/3) ... [2020-09-25 00:33:46,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d4d340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:33:46, skipping insertion in model container [2020-09-25 00:33:46,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:33:46" (3/3) ... [2020-09-25 00:33:46,149 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-25 00:33:46,161 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:33:46,172 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:33:46,192 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:33:46,224 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:33:46,224 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:33:46,224 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:33:46,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:33:46,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:33:46,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:33:46,224 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:33:46,225 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:33:46,264 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-09-25 00:33:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-25 00:33:46,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:33:46,289 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:33:46,290 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:33:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:33:46,297 INFO L82 PathProgramCache]: Analyzing trace with hash -945339618, now seen corresponding path program 1 times [2020-09-25 00:33:46,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:33:46,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865369046] [2020-09-25 00:33:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:33:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:47,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:47,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:48,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:48,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-25 00:33:48,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:33:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1708 [2020-09-25 00:33:48,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:33:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-09-25 00:33:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:33:48,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:33:49,109 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 00:33:49,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:33:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:49,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:49,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:49,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:33:49,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:49,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 00:33:49,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:49,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:33:49,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:49,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:33:49,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:33:49,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 00:33:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:49,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:33:49,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 00:33:49,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:33:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:33:49,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:33:49,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-25 00:33:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:49,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:49,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:49,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:33:49,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:33:49,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:33:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:33:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:33:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:33:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:49,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:49,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:49,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:33:49,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:49,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:33:49,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:33:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:33:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:33:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:33:49,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865369046] [2020-09-25 00:33:49,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:33:49,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:33:49,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147609850] [2020-09-25 00:33:49,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:33:49,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:33:49,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:33:49,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:33:49,910 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-09-25 00:33:51,227 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 00:33:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:33:53,485 INFO L93 Difference]: Finished difference Result 1280 states and 1446 transitions. [2020-09-25 00:33:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:33:53,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-09-25 00:33:53,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:33:53,518 INFO L225 Difference]: With dead ends: 1280 [2020-09-25 00:33:53,518 INFO L226 Difference]: Without dead ends: 778 [2020-09-25 00:33:53,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:33:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-09-25 00:33:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 735. [2020-09-25 00:33:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 00:33:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 793 transitions. [2020-09-25 00:33:53,718 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 793 transitions. Word has length 278 [2020-09-25 00:33:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:33:53,719 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 793 transitions. [2020-09-25 00:33:53,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:33:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 793 transitions. [2020-09-25 00:33:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-25 00:33:53,727 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:33:53,728 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:33:53,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:33:53,728 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:33:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:33:53,729 INFO L82 PathProgramCache]: Analyzing trace with hash 758943000, now seen corresponding path program 1 times [2020-09-25 00:33:53,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:33:53,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530971102] [2020-09-25 00:33:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:33:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:53,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:54,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:54,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:54,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 00:33:54,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:33:54,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-09-25 00:33:54,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:33:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-25 00:33:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:33:54,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:33:55,250 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 00:33:55,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:33:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:55,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:55,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:55,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:33:55,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 00:33:55,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:33:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:33:55,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:33:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 00:33:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:55,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:55,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:33:55,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:33:55,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:55,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:33:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:33:55,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:33:55,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-25 00:33:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:55,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:55,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:55,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:33:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:33:55,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:33:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:33:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:33:55,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:33:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:55,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:55,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:33:55,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:33:55,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:33:55,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:33:55,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:33:55,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:33:55,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:33:55,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:33:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:33:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:33:55,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530971102] [2020-09-25 00:33:55,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:33:55,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:33:55,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869141821] [2020-09-25 00:33:55,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:33:55,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:33:55,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:33:55,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:33:55,842 INFO L87 Difference]: Start difference. First operand 735 states and 793 transitions. Second operand 5 states. [2020-09-25 00:33:57,244 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 00:33:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:33:59,176 INFO L93 Difference]: Finished difference Result 780 states and 845 transitions. [2020-09-25 00:33:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:33:59,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2020-09-25 00:33:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:33:59,183 INFO L225 Difference]: With dead ends: 780 [2020-09-25 00:33:59,183 INFO L226 Difference]: Without dead ends: 777 [2020-09-25 00:33:59,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:33:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-25 00:33:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 734. [2020-09-25 00:33:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-09-25 00:33:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 791 transitions. [2020-09-25 00:33:59,254 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 791 transitions. Word has length 279 [2020-09-25 00:33:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:33:59,255 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 791 transitions. [2020-09-25 00:33:59,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:33:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 791 transitions. [2020-09-25 00:33:59,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-25 00:33:59,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:33:59,262 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:33:59,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:33:59,264 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:33:59,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:33:59,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2052101473, now seen corresponding path program 1 times [2020-09-25 00:33:59,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:33:59,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205877734] [2020-09-25 00:33:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:33:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:33:59,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:33:59,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:00,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:00,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 00:34:00,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-25 00:34:00,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-25 00:34:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:34:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:00,763 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 00:34:00,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:00,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:01,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:01,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:34:01,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:01,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 00:34:01,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:01,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:01,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 00:34:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:01,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:01,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:01,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:01,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:01,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:34:01,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:34:01,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:01,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-25 00:34:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:01,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:01,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:34:01,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:34:01,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:01,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:01,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:01,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:34:01,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:01,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:01,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:01,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:01,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:01,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:34:01,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:01,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:01,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:34:01,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205877734] [2020-09-25 00:34:01,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:34:01,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:34:01,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873761532] [2020-09-25 00:34:01,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:34:01,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:34:01,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:34:01,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:34:01,314 INFO L87 Difference]: Start difference. First operand 734 states and 791 transitions. Second operand 5 states. [2020-09-25 00:34:02,574 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 00:34:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:34:04,635 INFO L93 Difference]: Finished difference Result 781 states and 844 transitions. [2020-09-25 00:34:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:34:04,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-09-25 00:34:04,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:34:04,642 INFO L225 Difference]: With dead ends: 781 [2020-09-25 00:34:04,642 INFO L226 Difference]: Without dead ends: 777 [2020-09-25 00:34:04,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:34:04,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-25 00:34:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 732. [2020-09-25 00:34:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-09-25 00:34:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 787 transitions. [2020-09-25 00:34:04,704 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 787 transitions. Word has length 280 [2020-09-25 00:34:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:34:04,704 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 787 transitions. [2020-09-25 00:34:04,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:34:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 787 transitions. [2020-09-25 00:34:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-09-25 00:34:04,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:34:04,710 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:34:04,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:34:04,710 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:34:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:34:04,711 INFO L82 PathProgramCache]: Analyzing trace with hash -809653957, now seen corresponding path program 1 times [2020-09-25 00:34:04,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:34:04,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709875152] [2020-09-25 00:34:04,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:34:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:04,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:05,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:05,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:05,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-09-25 00:34:05,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 899 [2020-09-25 00:34:05,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 253 [2020-09-25 00:34:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:34:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:06,054 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 00:34:06,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:06,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:06,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:06,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:34:06,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:06,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 00:34:06,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:06,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:06,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:06,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:06,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 00:34:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:06,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:06,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:06,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:34:06,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:34:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:06,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-25 00:34:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:06,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:06,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:34:06,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:06,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 00:34:06,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:06,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:06,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:06,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:34:06,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:06,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:06,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:06,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:06,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:06,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:34:06,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:06,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:06,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:34:06,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709875152] [2020-09-25 00:34:06,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:34:06,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:34:06,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033588287] [2020-09-25 00:34:06,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:34:06,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:34:06,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:34:06,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:34:06,608 INFO L87 Difference]: Start difference. First operand 732 states and 787 transitions. Second operand 5 states. [2020-09-25 00:34:08,004 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 00:34:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:34:09,875 INFO L93 Difference]: Finished difference Result 777 states and 839 transitions. [2020-09-25 00:34:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:34:09,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-09-25 00:34:09,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:34:09,882 INFO L225 Difference]: With dead ends: 777 [2020-09-25 00:34:09,882 INFO L226 Difference]: Without dead ends: 760 [2020-09-25 00:34:09,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:34:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-09-25 00:34:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 717. [2020-09-25 00:34:09,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-25 00:34:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 770 transitions. [2020-09-25 00:34:09,984 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 770 transitions. Word has length 281 [2020-09-25 00:34:09,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:34:09,985 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 770 transitions. [2020-09-25 00:34:09,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:34:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 770 transitions. [2020-09-25 00:34:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-25 00:34:09,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:34:09,991 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:34:09,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:34:09,992 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:34:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:34:09,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1704679464, now seen corresponding path program 1 times [2020-09-25 00:34:09,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:34:09,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669463448] [2020-09-25 00:34:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:34:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:12,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:12,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-09-25 00:34:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:34:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2663 [2020-09-25 00:34:12,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-09-25 00:34:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:34:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:13,033 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 00:34:13,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:34:13,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 00:34:13,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:13,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:13,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 00:34:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:13,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:34:13,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-25 00:34:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 00:34:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:34:13,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 00:34:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:13,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:34:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:13,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:34:13,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:13,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-25 00:34:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:34:13,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:34:13,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:34:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:13,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:34:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:34:13,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:34:13,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:13,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:34:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:13,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:34:13,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:13,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-25 00:34:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:13,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:13,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:13,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:13,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:34:13,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 00:34:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:34:13,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669463448] [2020-09-25 00:34:13,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:34:13,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:34:13,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690789854] [2020-09-25 00:34:13,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:34:13,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:34:13,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:34:13,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:34:13,680 INFO L87 Difference]: Start difference. First operand 717 states and 770 transitions. Second operand 7 states. [2020-09-25 00:34:15,062 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 00:34:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:34:19,088 INFO L93 Difference]: Finished difference Result 1776 states and 2004 transitions. [2020-09-25 00:34:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:34:19,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-09-25 00:34:19,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:34:19,096 INFO L225 Difference]: With dead ends: 1776 [2020-09-25 00:34:19,096 INFO L226 Difference]: Without dead ends: 1311 [2020-09-25 00:34:19,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:34:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-09-25 00:34:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1031. [2020-09-25 00:34:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-25 00:34:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1118 transitions. [2020-09-25 00:34:19,201 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1118 transitions. Word has length 329 [2020-09-25 00:34:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:34:19,202 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1118 transitions. [2020-09-25 00:34:19,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:34:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1118 transitions. [2020-09-25 00:34:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-09-25 00:34:19,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:34:19,207 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:34:19,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:34:19,208 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:34:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:34:19,208 INFO L82 PathProgramCache]: Analyzing trace with hash -80114865, now seen corresponding path program 1 times [2020-09-25 00:34:19,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:34:19,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810947370] [2020-09-25 00:34:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:34:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:20,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:20,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-09-25 00:34:20,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:20,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-09-25 00:34:20,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:20,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:34:20,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 364 [2020-09-25 00:34:20,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:34:20,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:21,287 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 00:34:21,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:34:21,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 00:34:21,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:21,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:34:21,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 00:34:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:21,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:34:21,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:21,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:21,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:21,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-25 00:34:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:34:21,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:34:21,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:21,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:21,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:34:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:34:21,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:34:21,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:21,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:21,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:21,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-09-25 00:34:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 00:34:21,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:34:21,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:21,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:21,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:34:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:21,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:34:21,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:21,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2020-09-25 00:34:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:34:21,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 00:34:21,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:34:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:21,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:34:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:34:21,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:34:21,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:34:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:34:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:21,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:34:21,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:34:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-09-25 00:34:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:21,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:21,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:34:21,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:34:21,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 00:34:22,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810947370] [2020-09-25 00:34:22,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:34:22,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:34:22,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564235220] [2020-09-25 00:34:22,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:34:22,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:34:22,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:34:22,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:34:22,040 INFO L87 Difference]: Start difference. First operand 1031 states and 1118 transitions. Second operand 7 states. [2020-09-25 00:34:25,009 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 00:34:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:34:26,158 INFO L93 Difference]: Finished difference Result 1305 states and 1478 transitions. [2020-09-25 00:34:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:34:26,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2020-09-25 00:34:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:34:26,160 INFO L225 Difference]: With dead ends: 1305 [2020-09-25 00:34:26,160 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:34:26,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:34:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:34:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:34:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:34:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:34:26,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-09-25 00:34:26,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:34:26,167 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:34:26,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:34:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:34:26,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:34:26,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:34:26,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:34:26,359 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:26,525 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-25 00:34:26,683 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:26,844 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-25 00:34:27,009 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-25 00:34:27,163 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:27,390 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:27,528 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:27,672 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-25 00:34:27,824 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:27,972 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-25 00:34:28,115 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 00:34:28,261 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 176