/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 interpolation-heuristic=FIRST --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 16:39:11,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:39:11,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:39:11,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:39:11,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:39:11,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:39:11,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:39:11,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:39:11,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:39:11,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:39:11,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:39:11,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:39:11,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:39:11,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:39:11,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:39:11,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:39:11,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:39:11,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:39:11,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:39:11,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:39:11,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:39:11,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:39:11,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:39:11,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:39:11,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:39:11,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:39:11,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:39:11,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:39:11,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:39:11,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:39:11,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:39:11,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:39:11,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:39:11,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:39:11,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:39:11,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:39:11,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:39:11,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:39:11,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:39:11,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:39:11,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:39:11,687 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 16:39:11,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:39:11,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:39:11,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:39:11,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:39:11,730 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:39:11,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:39:11,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:39:11,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:39:11,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:39:11,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:39:11,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:39:11,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:39:11,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:39:11,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:39:11,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:39:11,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:39:11,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:39:11,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:39:11,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:39:11,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:39:11,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:39:11,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:39:11,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:39:11,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:39:11,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:39:11,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:39:11,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 16:39:11,736 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:39:12,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:39:12,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:39:12,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:39:12,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:39:12,164 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:39:12,165 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 16:39:12,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6520ef77/256319ff6d704549ab4bb721e89bec9d/FLAG4ee095581 [2020-09-24 16:39:12,996 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:39:12,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 16:39:13,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6520ef77/256319ff6d704549ab4bb721e89bec9d/FLAG4ee095581 [2020-09-24 16:39:13,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6520ef77/256319ff6d704549ab4bb721e89bec9d [2020-09-24 16:39:13,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:39:13,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:39:13,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:13,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:39:13,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:39:13,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:13" (1/1) ... [2020-09-24 16:39:13,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe29230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:13, skipping insertion in model container [2020-09-24 16:39:13,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:13" (1/1) ... [2020-09-24 16:39:13,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:39:13,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:39:14,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:14,322 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:39:14,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:14,649 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:39:14,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14 WrapperNode [2020-09-24 16:39:14,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:14,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:39:14,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:39:14,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:39:14,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (1/1) ... [2020-09-24 16:39:14,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:39:14,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:39:14,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:39:14,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:39:14,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (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 16:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:39:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 16:39:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-24 16:39:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-24 16:39:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2020-09-24 16:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2020-09-24 16:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2020-09-24 16:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2020-09-24 16:39:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2020-09-24 16:39:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2020-09-24 16:39:15,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2020-09-24 16:39:15,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2020-09-24 16:39:15,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2020-09-24 16:39:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2020-09-24 16:39:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:39:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 16:39:15,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 16:39:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 16:39:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 16:39:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 16:39:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 16:39:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 16:39:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-09-24 16:39:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-24 16:39:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-09-24 16:39:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-09-24 16:39:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 16:39:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 16:39:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 16:39:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 16:39:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 16:39:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 16:39:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 16:39:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 16:39:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 16:39:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 16:39:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 16:39:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 16:39:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 16:39:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 16:39:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 16:39:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 16:39:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 16:39:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 16:39:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 16:39:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 16:39:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 16:39:15,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 16:39:15,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 16:39:15,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 16:39:15,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 16:39:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 16:39:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-09-24 16:39:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 16:39:15,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:39:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 16:39:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 16:39:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 16:39:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2020-09-24 16:39:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2020-09-24 16:39:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2020-09-24 16:39:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2020-09-24 16:39:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2020-09-24 16:39:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 16:39:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 16:39:15,067 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 16:39:15,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2020-09-24 16:39:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2020-09-24 16:39:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2020-09-24 16:39:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2020-09-24 16:39:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2020-09-24 16:39:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 16:39:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:39:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 16:39:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-24 16:39:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-24 16:39:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-09-24 16:39:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 16:39:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 16:39:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 16:39:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 16:39:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 16:39:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 16:39:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-24 16:39:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-09-24 16:39:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 16:39:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 16:39:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 16:39:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 16:39:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-09-24 16:39:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-09-24 16:39:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 16:39:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 16:39:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 16:39:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 16:39:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 16:39:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 16:39:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 16:39:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:39:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2020-09-24 16:39:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 16:39:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 16:39:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 16:39:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2020-09-24 16:39:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2020-09-24 16:39:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2020-09-24 16:39:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2020-09-24 16:39:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2020-09-24 16:39:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2020-09-24 16:39:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2020-09-24 16:39:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2020-09-24 16:39:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2020-09-24 16:39:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2020-09-24 16:39:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2020-09-24 16:39:15,079 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2020-09-24 16:39:15,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 16:39:15,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:39:15,081 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2020-09-24 16:39:15,081 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2020-09-24 16:39:15,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:39:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2020-09-24 16:39:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2020-09-24 16:39:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:39:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:39:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:39:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2020-09-24 16:39:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2020-09-24 16:39:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2020-09-24 16:39:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 16:39:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 16:39:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:39:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 16:39:15,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 16:39:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 16:39:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 16:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 16:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 16:39:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 16:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 16:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 16:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 16:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 16:39:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 16:39:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 16:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:39:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:39:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 16:39:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:39:15,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:39:17,097 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:39:17,098 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 16:39:17,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:17 BoogieIcfgContainer [2020-09-24 16:39:17,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:39:17,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:39:17,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:39:17,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:39:17,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:39:13" (1/3) ... [2020-09-24 16:39:17,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560a3bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:17, skipping insertion in model container [2020-09-24 16:39:17,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:14" (2/3) ... [2020-09-24 16:39:17,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560a3bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:17, skipping insertion in model container [2020-09-24 16:39:17,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:17" (3/3) ... [2020-09-24 16:39:17,130 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 16:39:17,142 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:39:17,153 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:39:17,172 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:39:17,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:39:17,204 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:39:17,205 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:39:17,205 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:39:17,205 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:39:17,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:39:17,205 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:39:17,205 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:39:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-09-24 16:39:17,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-24 16:39:17,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:17,267 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 16:39:17,267 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash -945339618, now seen corresponding path program 1 times [2020-09-24 16:39:17,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:17,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42779950] [2020-09-24 16:39:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:17,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:17,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:17,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-24 16:39:17,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 16:39:17,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-24 16:39:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 16:39:17,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:18,281 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:18,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:18,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:18,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:18,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:18,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:18,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:18,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:18,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:39:18,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:18,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:18,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:18,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:18,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:18,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:18,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:18,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:18,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:18,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:18,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:18,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:18,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 16:39:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:18,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:18,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:18,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:18,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:18,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:18,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:18,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:39:18,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:18,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:18,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:18,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:18,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:18,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:18,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:18,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:39:18,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:18,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:18,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:18,721 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 16:39:18,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42779950] [2020-09-24 16:39:18,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:18,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:39:18,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969629650] [2020-09-24 16:39:18,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:39:18,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:18,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:39:18,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:39:18,753 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-09-24 16:39:19,979 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:24,387 INFO L93 Difference]: Finished difference Result 1768 states and 2027 transitions. [2020-09-24 16:39:24,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:39:24,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-09-24 16:39:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:24,420 INFO L225 Difference]: With dead ends: 1768 [2020-09-24 16:39:24,420 INFO L226 Difference]: Without dead ends: 1265 [2020-09-24 16:39:24,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:39:24,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-09-24 16:39:24,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1174. [2020-09-24 16:39:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-09-24 16:39:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1288 transitions. [2020-09-24 16:39:24,600 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1288 transitions. Word has length 278 [2020-09-24 16:39:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:24,601 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1288 transitions. [2020-09-24 16:39:24,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:39:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1288 transitions. [2020-09-24 16:39:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-09-24 16:39:24,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:24,609 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] [2020-09-24 16:39:24,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:39:24,609 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:24,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:24,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1212320878, now seen corresponding path program 1 times [2020-09-24 16:39:24,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:24,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140538873] [2020-09-24 16:39:24,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:24,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:24,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:24,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:24,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:24,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-24 16:39:24,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:24,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:24,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:24,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:24,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-09-24 16:39:24,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 16:39:24,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:25,125 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:25,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:25,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:25,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:25,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:25,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:25,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:25,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:25,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:25,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:25,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:25,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:25,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:25,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:25,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:25,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:25,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:25,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:39:25,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 16:39:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:25,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:25,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:25,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:25,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:25,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:25,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:25,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:25,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:25,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 16:39:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:25,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:25,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:25,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:25,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:25,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:25,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:39:25,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:25,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:25,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:25,512 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 16:39:25,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140538873] [2020-09-24 16:39:25,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:25,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:39:25,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963007080] [2020-09-24 16:39:25,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:39:25,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:25,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:39:25,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:39:25,518 INFO L87 Difference]: Start difference. First operand 1174 states and 1288 transitions. Second operand 5 states. [2020-09-24 16:39:27,061 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:29,195 INFO L93 Difference]: Finished difference Result 1262 states and 1391 transitions. [2020-09-24 16:39:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:39:29,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-09-24 16:39:29,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:29,206 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 16:39:29,206 INFO L226 Difference]: Without dead ends: 1259 [2020-09-24 16:39:29,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 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 16:39:29,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-09-24 16:39:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1173. [2020-09-24 16:39:29,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-09-24 16:39:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1286 transitions. [2020-09-24 16:39:29,291 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1286 transitions. Word has length 294 [2020-09-24 16:39:29,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:29,292 INFO L479 AbstractCegarLoop]: Abstraction has 1173 states and 1286 transitions. [2020-09-24 16:39:29,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:39:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1286 transitions. [2020-09-24 16:39:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-24 16:39:29,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:29,297 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] [2020-09-24 16:39:29,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:39:29,298 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:29,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:29,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1073058360, now seen corresponding path program 1 times [2020-09-24 16:39:29,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:29,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317439554] [2020-09-24 16:39:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:29,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:29,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:29,406 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:29,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:29,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-09-24 16:39:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:29,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-24 16:39:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 16:39:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:29,784 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:29,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:29,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:29,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:29,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:29,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:29,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:29,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:29,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:29,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:29,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:29,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:29,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:29,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:29,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:29,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:29,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:39:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:29,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 16:39:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:29,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:29,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:29,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:29,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:29,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 16:39:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:29,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:29,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:29,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:29,948 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:29,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:29,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:39:29,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:29,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:29,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:29,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:29,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:29,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:29,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:30,070 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 16:39:30,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317439554] [2020-09-24 16:39:30,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:30,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:39:30,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434587234] [2020-09-24 16:39:30,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:39:30,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:30,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:39:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:39:30,074 INFO L87 Difference]: Start difference. First operand 1173 states and 1286 transitions. Second operand 5 states. [2020-09-24 16:39:31,238 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:33,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:33,246 INFO L93 Difference]: Finished difference Result 1261 states and 1389 transitions. [2020-09-24 16:39:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:39:33,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 295 [2020-09-24 16:39:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:33,259 INFO L225 Difference]: With dead ends: 1261 [2020-09-24 16:39:33,259 INFO L226 Difference]: Without dead ends: 1258 [2020-09-24 16:39:33,260 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 16:39:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-24 16:39:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1172. [2020-09-24 16:39:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-09-24 16:39:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1284 transitions. [2020-09-24 16:39:33,394 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1284 transitions. Word has length 295 [2020-09-24 16:39:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:33,395 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1284 transitions. [2020-09-24 16:39:33,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:39:33,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1284 transitions. [2020-09-24 16:39:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-24 16:39:33,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:33,405 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] [2020-09-24 16:39:33,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:39:33,405 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:33,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1094634161, now seen corresponding path program 1 times [2020-09-24 16:39:33,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:33,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985972786] [2020-09-24 16:39:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 16:39:33,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:33,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:33,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-24 16:39:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 16:39:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:33,902 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:33,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:33,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:33,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:33,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:33,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:33,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:33,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:33,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:33,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:34,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:34,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:34,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:34,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:34,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:34,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:34,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:34,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:34,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:34,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:39:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:34,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 16:39:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:34,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:34,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:34,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:34,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:34,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:34,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 16:39:34,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:34,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:34,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:34,076 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:34,076 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:34,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:39:34,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:34,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:34,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:34,179 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 16:39:34,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985972786] [2020-09-24 16:39:34,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:34,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:39:34,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254592090] [2020-09-24 16:39:34,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:39:34,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:34,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:39:34,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:39:34,182 INFO L87 Difference]: Start difference. First operand 1172 states and 1284 transitions. Second operand 5 states. [2020-09-24 16:39:35,357 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:37,486 INFO L93 Difference]: Finished difference Result 1262 states and 1388 transitions. [2020-09-24 16:39:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:39:37,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-09-24 16:39:37,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:37,494 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 16:39:37,494 INFO L226 Difference]: Without dead ends: 1258 [2020-09-24 16:39:37,495 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 16:39:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-24 16:39:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1170. [2020-09-24 16:39:37,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2020-09-24 16:39:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1279 transitions. [2020-09-24 16:39:37,577 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1279 transitions. Word has length 296 [2020-09-24 16:39:37,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:37,578 INFO L479 AbstractCegarLoop]: Abstraction has 1170 states and 1279 transitions. [2020-09-24 16:39:37,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:39:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1279 transitions. [2020-09-24 16:39:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-24 16:39:37,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:37,583 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] [2020-09-24 16:39:37,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:39:37,583 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:37,584 INFO L82 PathProgramCache]: Analyzing trace with hash -426369557, now seen corresponding path program 1 times [2020-09-24 16:39:37,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:37,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511392143] [2020-09-24 16:39:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:37,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:37,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:37,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:37,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:37,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-09-24 16:39:37,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:37,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 253 [2020-09-24 16:39:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 16:39:37,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:38,127 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:38,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:38,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:38,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:38,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:38,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:38,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:38,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:38,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:38,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:38,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:38,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:38,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:38,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:39:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:38,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 16:39:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:38,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:38,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:38,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:38,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:38,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:38,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:38,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 16:39:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:38,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:38,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:38,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:38,289 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:38,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:38,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:39:38,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:38,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:38,370 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 16:39:38,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511392143] [2020-09-24 16:39:38,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:38,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:39:38,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776494777] [2020-09-24 16:39:38,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:39:38,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:38,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:39:38,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:39:38,374 INFO L87 Difference]: Start difference. First operand 1170 states and 1279 transitions. Second operand 5 states. [2020-09-24 16:39:39,405 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:40,957 INFO L93 Difference]: Finished difference Result 1258 states and 1382 transitions. [2020-09-24 16:39:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:39:40,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-09-24 16:39:40,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:40,963 INFO L225 Difference]: With dead ends: 1258 [2020-09-24 16:39:40,963 INFO L226 Difference]: Without dead ends: 1241 [2020-09-24 16:39:40,964 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 16:39:40,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-09-24 16:39:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 717. [2020-09-24 16:39:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-24 16:39:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 770 transitions. [2020-09-24 16:39:41,014 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 770 transitions. Word has length 297 [2020-09-24 16:39:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:41,015 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 770 transitions. [2020-09-24 16:39:41,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:39:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 770 transitions. [2020-09-24 16:39:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-24 16:39:41,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:41,020 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 16:39:41,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:39:41,021 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:41,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:41,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1704679464, now seen corresponding path program 1 times [2020-09-24 16:39:41,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:41,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324475774] [2020-09-24 16:39:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,124 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-09-24 16:39:41,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:41,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-09-24 16:39:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:39:41,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,437 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:41,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:41,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:39:41,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:41,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-24 16:39:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 16:39:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 16:39:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:41,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 16:39:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:41,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:39:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:39:41,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:41,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 16:39:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:39:41,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:41,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-24 16:39:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:41,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:41,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:41,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:41,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:41,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:41,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:41,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:41,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:41,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:41,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:39:41,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:41,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:41,832 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 16:39:41,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324475774] [2020-09-24 16:39:41,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:41,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:39:41,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567514299] [2020-09-24 16:39:41,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:39:41,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:41,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:39:41,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:39:41,836 INFO L87 Difference]: Start difference. First operand 717 states and 770 transitions. Second operand 7 states. [2020-09-24 16:39:42,913 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:47,161 INFO L93 Difference]: Finished difference Result 1776 states and 2004 transitions. [2020-09-24 16:39:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:39:47,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-09-24 16:39:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:47,177 INFO L225 Difference]: With dead ends: 1776 [2020-09-24 16:39:47,177 INFO L226 Difference]: Without dead ends: 1311 [2020-09-24 16:39:47,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:39:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-09-24 16:39:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1031. [2020-09-24 16:39:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-24 16:39:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1118 transitions. [2020-09-24 16:39:47,258 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1118 transitions. Word has length 329 [2020-09-24 16:39:47,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:47,258 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1118 transitions. [2020-09-24 16:39:47,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:39:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1118 transitions. [2020-09-24 16:39:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-09-24 16:39:47,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:47,267 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 16:39:47,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:39:47,267 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:47,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:47,268 INFO L82 PathProgramCache]: Analyzing trace with hash -80114865, now seen corresponding path program 1 times [2020-09-24 16:39:47,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:47,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837207615] [2020-09-24 16:39:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:47,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:47,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:47,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:47,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:47,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-09-24 16:39:47,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:47,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 16:39:47,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:47,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:39:47,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 364 [2020-09-24 16:39:47,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 16:39:47,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:47,810 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 16:39:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:47,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:47,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:47,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:47,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:47,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 16:39:47,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:47,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:47,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:47,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:47,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 16:39:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:47,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:47,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:47,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:47,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:47,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:47,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:47,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:47,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:47,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:47,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:47,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:47,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:47,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 16:39:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:47,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:47,980 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:47,980 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:47,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:47,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:47,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:47,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:47,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:47,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:47,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:47,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:47,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:47,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 16:39:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:48,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-09-24 16:39:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:48,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:48,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:48,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:48,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:48,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 16:39:48,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:48,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:48,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:48,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:48,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:48,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:48,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:48,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:48,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:48,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:48,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2020-09-24 16:39:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:48,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:48,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:48,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:48,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:48,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 16:39:48,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:48,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:48,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:39:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:48,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:48,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:48,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:48,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:48,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:39:48,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:48,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:39:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:48,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 16:39:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:48,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:48,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:48,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:48,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:48,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:39:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:48,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:39:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:48,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-09-24 16:39:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:48,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:48,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:48,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:39:48,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:39:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:48,275 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 16:39:48,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837207615] [2020-09-24 16:39:48,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:48,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:39:48,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309059752] [2020-09-24 16:39:48,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:39:48,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:48,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:39:48,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:39:48,278 INFO L87 Difference]: Start difference. First operand 1031 states and 1118 transitions. Second operand 7 states. [2020-09-24 16:39:51,206 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 16:39:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:52,387 INFO L93 Difference]: Finished difference Result 1305 states and 1478 transitions. [2020-09-24 16:39:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:39:52,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2020-09-24 16:39:52,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:52,389 INFO L225 Difference]: With dead ends: 1305 [2020-09-24 16:39:52,390 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:39:52,395 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 16:39:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:39:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:39:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:39:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:39:52,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-09-24 16:39:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:52,399 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:39:52,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:39:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:39:52,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:39:52,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:39:52,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:39:52,889 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:53,265 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:39:53,620 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:53,988 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:39:54,359 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:39:54,704 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:55,205 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:55,556 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:39:55,901 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:56,254 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:39:56,602 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:56,929 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:57,248 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:39:57,615 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:57,905 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:58,215 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 16:39:58,529 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 16:39:58,836 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:59,123 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:59,439 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:39:59,721 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:40:00,379 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 70 [2020-09-24 16:40:01,048 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 70 [2020-09-24 16:40:01,434 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:40:01,714 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:40:01,849 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-24 16:40:02,131 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:40:02,422 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:40:02,717 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 16:40:03,008 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-24 16:40:03,288 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-24 16:40:03,576 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2020-09-24 16:40:03,702 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-09-24 16:40:04,374 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 26 [2020-09-24 16:40:05,042 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 70