/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=LOWLEXORDER --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 [2020-09-24 22:19:40,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:19:40,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:19:40,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:19:40,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:19:40,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:19:40,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:19:40,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:19:40,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:19:40,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:19:40,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:19:40,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:19:40,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:19:40,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:19:40,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:19:40,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:19:40,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:19:40,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:19:40,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:19:40,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:19:40,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:19:40,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:19:40,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:19:40,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:19:40,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:19:40,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:19:40,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:19:40,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:19:40,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:19:40,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:19:40,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:19:40,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:19:40,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:19:40,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:19:40,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:19:40,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:19:40,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:19:40,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:19:40,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:19:40,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:19:40,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:19:40,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 22:19:40,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:19:40,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:19:40,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:19:40,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:19:40,385 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:19:40,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:19:40,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:19:40,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:19:40,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:19:40,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:19:40,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:19:40,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:19:40,387 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:19:40,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:19:40,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:19:40,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:19:40,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:19:40,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:19:40,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:19:40,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:19:40,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:19:40,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:19:40,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:19:40,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:19:40,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:19:40,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:19:40,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 22:19:40,395 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 22:19:40,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:19:40,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:19:40,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:19:40,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:19:40,902 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:19:40,903 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 22:19:40,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be60e9c31/d2ac77317054414ea7348dc6b9b455de/FLAGaada7f865 [2020-09-24 22:19:41,724 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:19:41,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 22:19:41,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be60e9c31/d2ac77317054414ea7348dc6b9b455de/FLAGaada7f865 [2020-09-24 22:19:41,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be60e9c31/d2ac77317054414ea7348dc6b9b455de [2020-09-24 22:19:41,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:19:41,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:19:41,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:19:41,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:19:41,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:19:41,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:19:41" (1/1) ... [2020-09-24 22:19:41,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c853998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:41, skipping insertion in model container [2020-09-24 22:19:41,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:19:41" (1/1) ... [2020-09-24 22:19:41,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:19:41,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:19:42,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:19:42,929 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:19:43,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:19:43,250 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:19:43,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43 WrapperNode [2020-09-24 22:19:43,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:19:43,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:19:43,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:19:43,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:19:43,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (1/1) ... [2020-09-24 22:19:43,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:19:43,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:19:43,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:19:43,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:19:43,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (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 [2020-09-24 22:19:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:19:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:19:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 22:19:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-24 22:19:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-24 22:19:43,522 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2020-09-24 22:19:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2020-09-24 22:19:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2020-09-24 22:19:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2020-09-24 22:19:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2020-09-24 22:19:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2020-09-24 22:19:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2020-09-24 22:19:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2020-09-24 22:19:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2020-09-24 22:19:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2020-09-24 22:19:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:19:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 22:19:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 22:19:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 22:19:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 22:19:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 22:19:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 22:19:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 22:19:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-09-24 22:19:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-24 22:19:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-09-24 22:19:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-09-24 22:19:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 22:19:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 22:19:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 22:19:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 22:19:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 22:19:43,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 22:19:43,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 22:19:43,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 22:19:43,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 22:19:43,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 22:19:43,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 22:19:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 22:19:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 22:19:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 22:19:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 22:19:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 22:19:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 22:19:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 22:19:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 22:19:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 22:19:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 22:19:43,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 22:19:43,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 22:19:43,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 22:19:43,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 22:19:43,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 22:19:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-09-24 22:19:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 22:19:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:19:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 22:19:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 22:19:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 22:19:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2020-09-24 22:19:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2020-09-24 22:19:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2020-09-24 22:19:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2020-09-24 22:19:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2020-09-24 22:19:43,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 22:19:43,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 22:19:43,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 22:19:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2020-09-24 22:19:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2020-09-24 22:19:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2020-09-24 22:19:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2020-09-24 22:19:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2020-09-24 22:19:43,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 22:19:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:19:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 22:19:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-24 22:19:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-24 22:19:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-09-24 22:19:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-24 22:19:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-09-24 22:19:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 22:19:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 22:19:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 22:19:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:19:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2020-09-24 22:19:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 22:19:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 22:19:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 22:19:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2020-09-24 22:19:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2020-09-24 22:19:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2020-09-24 22:19:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2020-09-24 22:19:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2020-09-24 22:19:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2020-09-24 22:19:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2020-09-24 22:19:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2020-09-24 22:19:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2020-09-24 22:19:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2020-09-24 22:19:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2020-09-24 22:19:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2020-09-24 22:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 22:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2020-09-24 22:19:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2020-09-24 22:19:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:19:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2020-09-24 22:19:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2020-09-24 22:19:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:19:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:19:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:19:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 22:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 22:19:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 22:19:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 22:19:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 22:19:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 22:19:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:19:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:19:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:19:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 22:19:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:19:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:19:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 22:19:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:19:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:19:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 22:19:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:19:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:19:45,438 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:19:45,438 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:19:45,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:19:45 BoogieIcfgContainer [2020-09-24 22:19:45,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:19:45,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:19:45,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:19:45,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:19:45,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:19:41" (1/3) ... [2020-09-24 22:19:45,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16472b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:19:45, skipping insertion in model container [2020-09-24 22:19:45,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:19:43" (2/3) ... [2020-09-24 22:19:45,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16472b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:19:45, skipping insertion in model container [2020-09-24 22:19:45,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:19:45" (3/3) ... [2020-09-24 22:19:45,461 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 22:19:45,473 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:19:45,487 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:19:45,514 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:19:45,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:19:45,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:19:45,553 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:19:45,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:19:45,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:19:45,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:19:45,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:19:45,553 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:19:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-09-24 22:19:45,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-24 22:19:45,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:19:45,619 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] [2020-09-24 22:19:45,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:19:45,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:19:45,627 INFO L82 PathProgramCache]: Analyzing trace with hash -945339618, now seen corresponding path program 1 times [2020-09-24 22:19:45,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:19:45,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057188755] [2020-09-24 22:19:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:19:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:46,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:46,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:47,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:47,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-24 22:19:47,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:19:47,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1448 [2020-09-24 22:19:47,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-09-24 22:19:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 22:19:47,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:19:47,994 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 22:19:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:19:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:48,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:48,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:48,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 22:19:48,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:48,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-24 22:19:48,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:19:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:19:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:19:48,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 22:19:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:48,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:48,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:48,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:19:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 22:19:48,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:19:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:19:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 22:19:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:48,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:48,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:48,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 22:19:48,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:48,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 22:19:48,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:48,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:48,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:48,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:19:48,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:19:48,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:19:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:48,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:48,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:48,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:19:48,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:48,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:19:48,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:19:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:19:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:19:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:19:48,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057188755] [2020-09-24 22:19:48,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:19:48,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:19:48,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079938596] [2020-09-24 22:19:48,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:19:48,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:19:48,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:19:48,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:19:48,866 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-09-24 22:19:50,303 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 22:19:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:19:52,536 INFO L93 Difference]: Finished difference Result 1280 states and 1446 transitions. [2020-09-24 22:19:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:19:52,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-09-24 22:19:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:19:52,566 INFO L225 Difference]: With dead ends: 1280 [2020-09-24 22:19:52,567 INFO L226 Difference]: Without dead ends: 778 [2020-09-24 22:19:52,576 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 [2020-09-24 22:19:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-09-24 22:19:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 735. [2020-09-24 22:19:52,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-24 22:19:52,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 793 transitions. [2020-09-24 22:19:52,755 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 793 transitions. Word has length 278 [2020-09-24 22:19:52,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:19:52,757 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 793 transitions. [2020-09-24 22:19:52,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:19:52,757 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 793 transitions. [2020-09-24 22:19:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-24 22:19:52,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:19:52,765 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] [2020-09-24 22:19:52,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:19:52,766 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:19:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:19:52,766 INFO L82 PathProgramCache]: Analyzing trace with hash 758943000, now seen corresponding path program 1 times [2020-09-24 22:19:52,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:19:52,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124695404] [2020-09-24 22:19:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:19:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:52,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:53,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-24 22:19:53,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:19:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-09-24 22:19:53,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-24 22:19:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 22:19:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:19:54,262 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 22:19:54,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:19:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:54,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:54,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:54,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 22:19:54,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:54,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-24 22:19:54,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:54,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:19:54,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:54,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:19:54,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:19:54,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 22:19:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:54,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:54,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:19:54,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:54,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:19:54,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:19:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:19:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 22:19:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:54,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:54,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:54,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 22:19:54,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 22:19:54,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:19:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:19:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:19:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:54,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:54,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:19:54,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:19:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:19:54,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:19:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:19:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:19:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:19:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:19:54,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124695404] [2020-09-24 22:19:54,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:19:54,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:19:54,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011827716] [2020-09-24 22:19:54,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:19:54,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:19:54,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:19:54,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:19:54,974 INFO L87 Difference]: Start difference. First operand 735 states and 793 transitions. Second operand 5 states. [2020-09-24 22:19:56,390 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 22:19:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:19:58,350 INFO L93 Difference]: Finished difference Result 780 states and 845 transitions. [2020-09-24 22:19:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:19:58,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2020-09-24 22:19:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:19:58,358 INFO L225 Difference]: With dead ends: 780 [2020-09-24 22:19:58,359 INFO L226 Difference]: Without dead ends: 777 [2020-09-24 22:19:58,361 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 [2020-09-24 22:19:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-24 22:19:58,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 734. [2020-09-24 22:19:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-09-24 22:19:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 791 transitions. [2020-09-24 22:19:58,489 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 791 transitions. Word has length 279 [2020-09-24 22:19:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:19:58,491 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 791 transitions. [2020-09-24 22:19:58,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:19:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 791 transitions. [2020-09-24 22:19:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-24 22:19:58,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:19:58,498 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] [2020-09-24 22:19:58,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:19:58,502 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:19:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:19:58,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2052101473, now seen corresponding path program 1 times [2020-09-24 22:19:58,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:19:58,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874864890] [2020-09-24 22:19:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:19:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:19:58,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:59,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:19:59,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:19:59,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-24 22:19:59,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:19:59,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-09-24 22:19:59,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:19:59,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:19:59,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-24 22:19:59,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 22:19:59,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:00,066 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 22:20:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:00,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:00,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 22:20:00,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:00,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 22:20:00,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:00,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:00,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:00,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:20:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 22:20:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:00,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:00,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:00,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:00,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:20:00,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:00,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:00,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:20:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:00,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 22:20:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:00,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:00,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:00,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 22:20:00,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:00,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 22:20:00,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:20:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:00,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:00,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:00,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:00,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:00,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:20:00,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:00,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:00,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:00,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:20:00,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874864890] [2020-09-24 22:20:00,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:00,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:20:00,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739816261] [2020-09-24 22:20:00,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:20:00,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:00,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:20:00,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:20:00,688 INFO L87 Difference]: Start difference. First operand 734 states and 791 transitions. Second operand 5 states. [2020-09-24 22:20:02,195 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 22:20:04,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:04,309 INFO L93 Difference]: Finished difference Result 781 states and 844 transitions. [2020-09-24 22:20:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:20:04,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-09-24 22:20:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:04,315 INFO L225 Difference]: With dead ends: 781 [2020-09-24 22:20:04,315 INFO L226 Difference]: Without dead ends: 777 [2020-09-24 22:20:04,316 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 [2020-09-24 22:20:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-09-24 22:20:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 732. [2020-09-24 22:20:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-09-24 22:20:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 787 transitions. [2020-09-24 22:20:04,364 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 787 transitions. Word has length 280 [2020-09-24 22:20:04,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:04,365 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 787 transitions. [2020-09-24 22:20:04,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:20:04,365 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 787 transitions. [2020-09-24 22:20:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-09-24 22:20:04,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:04,370 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] [2020-09-24 22:20:04,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:20:04,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:04,371 INFO L82 PathProgramCache]: Analyzing trace with hash -809653957, now seen corresponding path program 1 times [2020-09-24 22:20:04,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:04,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782137767] [2020-09-24 22:20:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:04,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:04,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:05,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:05,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-09-24 22:20:05,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 960 [2020-09-24 22:20:05,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 253 [2020-09-24 22:20:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 22:20:05,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:05,719 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 22:20:05,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:05,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:05,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 22:20:05,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:05,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 22:20:05,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:05,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:05,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:05,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 22:20:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:06,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:06,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 22:20:06,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:20:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 22:20:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:06,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 22:20:06,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:20:06,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:20:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:06,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:06,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:20:06,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:06,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:20:06,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782137767] [2020-09-24 22:20:06,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:06,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:20:06,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043756415] [2020-09-24 22:20:06,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:20:06,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:06,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:20:06,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:20:06,244 INFO L87 Difference]: Start difference. First operand 732 states and 787 transitions. Second operand 5 states. [2020-09-24 22:20:07,383 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 22:20:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:09,223 INFO L93 Difference]: Finished difference Result 777 states and 839 transitions. [2020-09-24 22:20:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:20:09,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-09-24 22:20:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:09,229 INFO L225 Difference]: With dead ends: 777 [2020-09-24 22:20:09,230 INFO L226 Difference]: Without dead ends: 760 [2020-09-24 22:20:09,230 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 [2020-09-24 22:20:09,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-09-24 22:20:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 717. [2020-09-24 22:20:09,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-24 22:20:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 770 transitions. [2020-09-24 22:20:09,275 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 770 transitions. Word has length 281 [2020-09-24 22:20:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:09,276 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 770 transitions. [2020-09-24 22:20:09,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:20:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 770 transitions. [2020-09-24 22:20:09,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-24 22:20:09,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:09,282 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] [2020-09-24 22:20:09,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:20:09,282 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:09,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:09,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1704679464, now seen corresponding path program 1 times [2020-09-24 22:20:09,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:09,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560721067] [2020-09-24 22:20:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:09,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:09,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-09-24 22:20:12,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:20:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2844 [2020-09-24 22:20:12,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:12,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-09-24 22:20:12,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:20:12,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,491 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 22:20:12,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 22:20:12,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-24 22:20:12,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 22:20:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:12,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:20:12,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:12,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-24 22:20:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:20:12,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:20:12,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 22:20:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:20:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:12,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 22:20:12,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:12,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:12,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 22:20:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:20:12,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:20:12,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 22:20:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:20:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:20:12,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:20:12,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 22:20:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:20:12,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:12,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-24 22:20:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:12,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:12,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:12,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:12,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:12,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:20:12,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 22:20:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:20:13,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560721067] [2020-09-24 22:20:13,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:13,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:20:13,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932322540] [2020-09-24 22:20:13,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:20:13,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:13,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:20:13,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:20:13,061 INFO L87 Difference]: Start difference. First operand 717 states and 770 transitions. Second operand 7 states. [2020-09-24 22:20:14,139 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 22:20:18,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:18,312 INFO L93 Difference]: Finished difference Result 1776 states and 2004 transitions. [2020-09-24 22:20:18,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:20:18,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-09-24 22:20:18,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:18,320 INFO L225 Difference]: With dead ends: 1776 [2020-09-24 22:20:18,320 INFO L226 Difference]: Without dead ends: 1311 [2020-09-24 22:20:18,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:20:18,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-09-24 22:20:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1031. [2020-09-24 22:20:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-24 22:20:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1118 transitions. [2020-09-24 22:20:18,398 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1118 transitions. Word has length 329 [2020-09-24 22:20:18,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:18,399 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1118 transitions. [2020-09-24 22:20:18,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:20:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1118 transitions. [2020-09-24 22:20:18,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-09-24 22:20:18,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:18,408 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] [2020-09-24 22:20:18,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:20:18,408 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:18,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:18,409 INFO L82 PathProgramCache]: Analyzing trace with hash -80114865, now seen corresponding path program 1 times [2020-09-24 22:20:18,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:18,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815849530] [2020-09-24 22:20:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:18,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:19,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:19,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-09-24 22:20:19,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-09-24 22:20:19,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:19,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:20:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 364 [2020-09-24 22:20:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 22:20:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:20,399 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 22:20:20,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 22:20:20,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 22:20:20,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:20,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:20,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 22:20:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:20,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:20:20,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:20,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 22:20:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:20:20,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:20:20,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:20:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 22:20:20,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 22:20:20,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:20,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-09-24 22:20:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:20:20,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:20:20,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:20:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:20,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:20:20,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:20,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:20,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2020-09-24 22:20:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:20:20,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:20:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:20:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:20:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:20,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:20,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:20:20,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 22:20:20,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:20:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:20,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 22:20:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:21,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:20:21,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:20:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:21,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-09-24 22:20:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:21,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:21,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:21,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:20:21,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:21,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:20:21,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:21,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:20:21,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 22:20:21,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815849530] [2020-09-24 22:20:21,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:21,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:20:21,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539417434] [2020-09-24 22:20:21,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:20:21,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:21,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:20:21,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:20:21,238 INFO L87 Difference]: Start difference. First operand 1031 states and 1118 transitions. Second operand 7 states. [2020-09-24 22:20:24,017 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 22:20:25,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:25,170 INFO L93 Difference]: Finished difference Result 1305 states and 1478 transitions. [2020-09-24 22:20:25,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:20:25,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2020-09-24 22:20:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:25,172 INFO L225 Difference]: With dead ends: 1305 [2020-09-24 22:20:25,172 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:20:25,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:20:25,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:20:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:20:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:20:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:20:25,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-09-24 22:20:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:25,177 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:20:25,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:20:25,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:20:25,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:20:25,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:20:25,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 22:20:25,364 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:25,532 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-24 22:20:25,690 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:25,849 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-24 22:20:26,011 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-24 22:20:26,162 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:26,388 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:26,557 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:26,701 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-24 22:20:26,840 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:26,980 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-24 22:20:27,116 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:27,257 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-09-24 22:20:27,434 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:27,569 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:27,714 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-24 22:20:27,850 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-24 22:20:28,016 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:28,152 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 22:20:28,497 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 23