/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:39:41,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:39:41,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:39:41,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:39:41,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:39:41,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:39:41,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:39:41,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:39:41,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:39:41,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:39:41,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:39:41,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:39:41,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:39:41,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:39:41,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:39:41,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:39:41,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:39:41,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:39:41,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:39:41,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:39:41,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:39:41,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:39:41,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:39:41,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:39:41,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:39:41,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:39:41,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:39:41,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:39:41,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:39:41,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:39:41,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:39:41,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:39:41,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:39:41,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:39:41,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:39:41,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:39:41,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:39:41,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:39:41,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:39:41,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:39:41,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:39:41,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 01:39:41,669 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:39:41,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:39:41,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:39:41,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:39:41,672 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:39:41,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:39:41,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:39:41,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:39:41,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:39:41,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:39:41,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:39:41,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:39:41,675 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:39:41,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:39:41,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:39:41,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:39:41,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:39:41,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:39:41,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:39:41,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:39:41,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:39:41,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:39:41,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:39:41,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:39:41,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:39:41,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:39:41,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 01:39:41,679 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 01:39:42,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:39:42,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:39:42,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:39:42,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:39:42,198 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:39:42,199 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-25 01:39:42,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/325b4471c/8a77c8e3f3df47e084b13cda06ce0df3/FLAGc9b76694a [2020-09-25 01:39:43,037 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:39:43,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-25 01:39:43,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/325b4471c/8a77c8e3f3df47e084b13cda06ce0df3/FLAGc9b76694a [2020-09-25 01:39:43,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/325b4471c/8a77c8e3f3df47e084b13cda06ce0df3 [2020-09-25 01:39:43,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:39:43,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:39:43,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:39:43,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:39:43,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:39:43,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:43" (1/1) ... [2020-09-25 01:39:43,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2fc715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43, skipping insertion in model container [2020-09-25 01:39:43,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:43" (1/1) ... [2020-09-25 01:39:43,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:39:43,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:39:44,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:39:44,481 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:39:44,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:39:44,805 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:39:44,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44 WrapperNode [2020-09-25 01:39:44,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:39:44,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:39:44,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:39:44,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:39:44,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:44,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:44,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:44,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:44,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:45,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:45,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... [2020-09-25 01:39:45,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:39:45,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:39:45,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:39:45,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:39:45,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:39:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:39:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:39:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-25 01:39:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-25 01:39:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-25 01:39:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2020-09-25 01:39:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2020-09-25 01:39:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2020-09-25 01:39:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2020-09-25 01:39:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2020-09-25 01:39:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2020-09-25 01:39:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2020-09-25 01:39:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2020-09-25 01:39:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2020-09-25 01:39:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2020-09-25 01:39:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:39:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-25 01:39:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-25 01:39:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-25 01:39:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-25 01:39:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-25 01:39:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-25 01:39:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-25 01:39:45,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-09-25 01:39:45,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-25 01:39:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-09-25 01:39:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-09-25 01:39:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 01:39:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 01:39:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 01:39:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 01:39:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-25 01:39:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-25 01:39:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-25 01:39:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 01:39:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-25 01:39:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-25 01:39:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-25 01:39:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-25 01:39:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-25 01:39:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-25 01:39:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-25 01:39:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-25 01:39:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-25 01:39:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 01:39:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 01:39:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 01:39:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 01:39:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 01:39:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 01:39:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 01:39:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2020-09-25 01:39:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 01:39:45,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-25 01:39:45,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 01:39:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2020-09-25 01:39:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2020-09-25 01:39:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2020-09-25 01:39:45,169 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2020-09-25 01:39:45,170 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2020-09-25 01:39:45,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 01:39:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:39:45,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 01:39:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-25 01:39:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-25 01:39:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-09-25 01:39:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-25 01:39:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-25 01:39:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 01:39:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-25 01:39:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-25 01:39:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-25 01:39:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-25 01:39:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-09-25 01:39:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 01:39:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-25 01:39:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-25 01:39:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-25 01:39:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-09-25 01:39:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-09-25 01:39:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-25 01:39:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-25 01:39:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-25 01:39:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-25 01:39:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 01:39:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 01:39:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 01:39:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:39:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2020-09-25 01:39:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 01:39:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 01:39:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-25 01:39:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2020-09-25 01:39:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2020-09-25 01:39:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2020-09-25 01:39:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2020-09-25 01:39:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2020-09-25 01:39:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2020-09-25 01:39:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2020-09-25 01:39:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2020-09-25 01:39:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2020-09-25 01:39:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2020-09-25 01:39:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2020-09-25 01:39:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2020-09-25 01:39:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-25 01:39:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:39:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2020-09-25 01:39:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2020-09-25 01:39:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:39:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2020-09-25 01:39:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2020-09-25 01:39:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:39:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:39:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:39:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2020-09-25 01:39:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2020-09-25 01:39:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2020-09-25 01:39:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 01:39:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 01:39:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:39:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 01:39:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 01:39:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 01:39:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 01:39:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-25 01:39:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-25 01:39:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 01:39:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-25 01:39:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-25 01:39:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-25 01:39:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-25 01:39:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-25 01:39:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-25 01:39:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 01:39:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 01:39:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 01:39:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 01:39:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 01:39:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:39:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:39:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:39:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 01:39:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:39:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:39:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 01:39:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:39:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:39:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 01:39:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:39:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:39:47,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:39:47,289 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 01:39:47,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:47 BoogieIcfgContainer [2020-09-25 01:39:47,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:39:47,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:39:47,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:39:47,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:39:47,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:43" (1/3) ... [2020-09-25 01:39:47,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7134643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:47, skipping insertion in model container [2020-09-25 01:39:47,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:44" (2/3) ... [2020-09-25 01:39:47,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7134643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:47, skipping insertion in model container [2020-09-25 01:39:47,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:47" (3/3) ... [2020-09-25 01:39:47,312 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-25 01:39:47,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:39:47,334 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:39:47,356 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:39:47,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:39:47,391 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:39:47,392 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:39:47,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:39:47,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:39:47,392 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:39:47,392 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:39:47,392 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:39:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-09-25 01:39:47,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-25 01:39:47,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:39:47,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:39:47,461 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:39:47,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:39:47,469 INFO L82 PathProgramCache]: Analyzing trace with hash -945339618, now seen corresponding path program 1 times [2020-09-25 01:39:47,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:39:47,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467338970] [2020-09-25 01:39:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:39:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:48,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:48,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:49,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:49,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-25 01:39:49,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:39:49,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1424 [2020-09-25 01:39:49,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:39:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-25 01:39:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 01:39:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:39:49,905 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 01:39:49,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:39:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:49,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:50,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:50,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 01:39:50,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:50,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 01:39:50,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:39:50,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:50,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:39:50,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:50,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 01:39:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:50,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:50,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:39:50,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:39:50,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:39:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:50,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:39:50,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-25 01:39:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:50,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:50,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:39:50,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:39:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:39:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:39:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:39:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:50,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:39:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:50,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:50,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:50,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:39:50,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:39:50,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:39:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:39:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:39:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:39:50,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467338970] [2020-09-25 01:39:50,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:39:50,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:39:50,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806287904] [2020-09-25 01:39:50,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:39:50,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:39:50,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:39:50,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:39:50,604 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-09-25 01:39:51,916 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:39:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:39:56,138 INFO L93 Difference]: Finished difference Result 1768 states and 2027 transitions. [2020-09-25 01:39:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:39:56,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-09-25 01:39:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:39:56,184 INFO L225 Difference]: With dead ends: 1768 [2020-09-25 01:39:56,184 INFO L226 Difference]: Without dead ends: 1265 [2020-09-25 01:39:56,198 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 [2020-09-25 01:39:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-09-25 01:39:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1174. [2020-09-25 01:39:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-09-25 01:39:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1288 transitions. [2020-09-25 01:39:56,399 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1288 transitions. Word has length 278 [2020-09-25 01:39:56,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:39:56,401 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1288 transitions. [2020-09-25 01:39:56,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:39:56,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1288 transitions. [2020-09-25 01:39:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-09-25 01:39:56,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:39:56,410 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] [2020-09-25 01:39:56,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:39:56,411 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:39:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:39:56,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1212320878, now seen corresponding path program 1 times [2020-09-25 01:39:56,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:39:56,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409229815] [2020-09-25 01:39:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:39:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:56,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:57,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:57,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 01:39:57,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:57,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-09-25 01:39:57,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:39:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-09-25 01:39:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 01:39:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:57,544 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 01:39:57,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:39:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:57,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 01:39:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 01:39:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:39:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:39:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:57,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 01:39:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:57,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:57,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:39:57,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:57,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 01:39:57,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:57,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:39:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:39:57,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-25 01:39:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:57,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:57,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:57,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 01:39:57,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:57,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:39:57,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:57,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:39:57,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:57,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:39:57,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:57,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:39:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:39:58,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:39:58,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:39:58,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 01:39:58,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:39:58,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:39:58,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:39:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:39:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:39:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:39:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:39:58,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:39:58,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409229815] [2020-09-25 01:39:58,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:39:58,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:39:58,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393647224] [2020-09-25 01:39:58,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:39:58,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:39:58,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:39:58,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:39:58,111 INFO L87 Difference]: Start difference. First operand 1174 states and 1288 transitions. Second operand 5 states. [2020-09-25 01:39:59,281 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:40:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:01,357 INFO L93 Difference]: Finished difference Result 1262 states and 1391 transitions. [2020-09-25 01:40:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:40:01,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-09-25 01:40:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:01,368 INFO L225 Difference]: With dead ends: 1262 [2020-09-25 01:40:01,368 INFO L226 Difference]: Without dead ends: 1259 [2020-09-25 01:40:01,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-09-25 01:40:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1173. [2020-09-25 01:40:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-09-25 01:40:01,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1286 transitions. [2020-09-25 01:40:01,460 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1286 transitions. Word has length 294 [2020-09-25 01:40:01,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:01,461 INFO L479 AbstractCegarLoop]: Abstraction has 1173 states and 1286 transitions. [2020-09-25 01:40:01,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:40:01,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1286 transitions. [2020-09-25 01:40:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-25 01:40:01,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:01,467 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] [2020-09-25 01:40:01,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:40:01,468 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:01,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1073058360, now seen corresponding path program 1 times [2020-09-25 01:40:01,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:01,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498346526] [2020-09-25 01:40:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:02,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:02,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-09-25 01:40:02,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-25 01:40:02,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-25 01:40:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 01:40:02,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:02,403 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 01:40:02,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:02,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:02,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:02,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 01:40:02,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:02,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 01:40:02,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:02,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:40:02,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 01:40:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:02,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:02,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:02,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:02,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:02,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 01:40:02,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:02,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:40:02,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-25 01:40:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:02,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:02,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:02,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 01:40:02,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 01:40:02,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:40:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:02,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:02,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:02,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 01:40:02,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:40:02,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:40:03,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498346526] [2020-09-25 01:40:03,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:03,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:40:03,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058064343] [2020-09-25 01:40:03,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:40:03,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:03,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:40:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:40:03,080 INFO L87 Difference]: Start difference. First operand 1173 states and 1286 transitions. Second operand 5 states. [2020-09-25 01:40:04,558 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:40:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:06,492 INFO L93 Difference]: Finished difference Result 1261 states and 1389 transitions. [2020-09-25 01:40:06,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:40:06,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 295 [2020-09-25 01:40:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:06,501 INFO L225 Difference]: With dead ends: 1261 [2020-09-25 01:40:06,501 INFO L226 Difference]: Without dead ends: 1258 [2020-09-25 01:40:06,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:06,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-25 01:40:06,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1172. [2020-09-25 01:40:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-09-25 01:40:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1284 transitions. [2020-09-25 01:40:06,580 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1284 transitions. Word has length 295 [2020-09-25 01:40:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:06,581 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1284 transitions. [2020-09-25 01:40:06,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:40:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1284 transitions. [2020-09-25 01:40:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-25 01:40:06,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:06,586 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] [2020-09-25 01:40:06,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:40:06,587 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:06,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:06,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1094634161, now seen corresponding path program 1 times [2020-09-25 01:40:06,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:06,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77654895] [2020-09-25 01:40:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-25 01:40:07,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-09-25 01:40:07,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-25 01:40:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 01:40:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:07,581 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 01:40:07,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 01:40:07,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:07,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 01:40:07,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:07,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:08,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 01:40:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:08,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:08,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:08,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:08,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:40:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-25 01:40:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:08,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:08,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:08,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 01:40:08,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:40:08,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:08,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:08,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 01:40:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:08,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:40:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:40:08,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77654895] [2020-09-25 01:40:08,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:08,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:40:08,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83755211] [2020-09-25 01:40:08,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:40:08,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:08,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:40:08,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:40:08,279 INFO L87 Difference]: Start difference. First operand 1172 states and 1284 transitions. Second operand 5 states. [2020-09-25 01:40:09,394 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:40:11,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:11,313 INFO L93 Difference]: Finished difference Result 1262 states and 1388 transitions. [2020-09-25 01:40:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:40:11,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-09-25 01:40:11,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:11,323 INFO L225 Difference]: With dead ends: 1262 [2020-09-25 01:40:11,323 INFO L226 Difference]: Without dead ends: 1258 [2020-09-25 01:40:11,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-25 01:40:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1170. [2020-09-25 01:40:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2020-09-25 01:40:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1279 transitions. [2020-09-25 01:40:11,431 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1279 transitions. Word has length 296 [2020-09-25 01:40:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:11,432 INFO L479 AbstractCegarLoop]: Abstraction has 1170 states and 1279 transitions. [2020-09-25 01:40:11,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:40:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1279 transitions. [2020-09-25 01:40:11,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-25 01:40:11,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:11,435 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] [2020-09-25 01:40:11,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:40:11,435 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:11,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:11,436 INFO L82 PathProgramCache]: Analyzing trace with hash -426369557, now seen corresponding path program 1 times [2020-09-25 01:40:11,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:11,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253313787] [2020-09-25 01:40:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:11,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:12,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:12,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-09-25 01:40:12,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:12,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-25 01:40:12,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:12,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 253 [2020-09-25 01:40:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 01:40:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:12,381 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 01:40:12,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:12,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:12,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:12,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 01:40:12,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:12,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 01:40:12,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:12,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:12,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 01:40:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:12,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:12,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:12,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:12,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:12,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 01:40:12,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:40:12,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-25 01:40:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:12,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:12,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:12,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 01:40:12,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:12,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:40:12,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:12,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:12,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:12,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 01:40:12,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:12,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:12,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:12,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:12,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 01:40:12,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:12,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:40:12,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:12,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:12,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:40:12,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253313787] [2020-09-25 01:40:12,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:12,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:40:12,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595345613] [2020-09-25 01:40:12,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:40:12,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:12,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:40:12,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:40:12,954 INFO L87 Difference]: Start difference. First operand 1170 states and 1279 transitions. Second operand 5 states. [2020-09-25 01:40:13,920 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:40:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:15,329 INFO L93 Difference]: Finished difference Result 1258 states and 1382 transitions. [2020-09-25 01:40:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:40:15,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-09-25 01:40:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:15,337 INFO L225 Difference]: With dead ends: 1258 [2020-09-25 01:40:15,337 INFO L226 Difference]: Without dead ends: 1241 [2020-09-25 01:40:15,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-09-25 01:40:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 717. [2020-09-25 01:40:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-25 01:40:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 770 transitions. [2020-09-25 01:40:15,388 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 770 transitions. Word has length 297 [2020-09-25 01:40:15,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:15,389 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 770 transitions. [2020-09-25 01:40:15,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:40:15,389 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 770 transitions. [2020-09-25 01:40:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-25 01:40:15,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:15,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:40:15,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:40:15,393 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:15,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:15,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1704679464, now seen corresponding path program 1 times [2020-09-25 01:40:15,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:15,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167589107] [2020-09-25 01:40:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:15,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:15,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:16,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:18,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:18,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-09-25 01:40:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:40:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2688 [2020-09-25 01:40:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:40:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 319 [2020-09-25 01:40:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 01:40:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:18,476 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-25 01:40:18,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:18,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:18,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:18,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 01:40:18,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:18,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 01:40:18,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:18,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:18,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-25 01:40:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:18,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:18,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:18,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:40:18,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:18,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:18,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-25 01:40:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:18,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:18,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:18,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 01:40:18,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 01:40:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:18,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:18,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:18,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:18,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:18,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 01:40:18,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:18,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:18,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:18,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:18,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-25 01:40:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:18,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:19,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:19,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 01:40:19,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 01:40:19,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:19,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:40:19,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:19,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:19,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:19,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:19,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:40:19,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 01:40:19,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:40:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:19,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 01:40:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:19,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:19,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:19,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:40:19,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:40:19,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:19,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:40:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:19,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-25 01:40:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:19,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:19,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:40:19,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:19,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 01:40:19,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:40:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:40:19,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167589107] [2020-09-25 01:40:19,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:19,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:40:19,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646050537] [2020-09-25 01:40:19,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:40:19,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:19,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:40:19,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:19,394 INFO L87 Difference]: Start difference. First operand 717 states and 770 transitions. Second operand 7 states. [2020-09-25 01:40:22,018 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:40:23,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:23,214 INFO L93 Difference]: Finished difference Result 893 states and 1002 transitions. [2020-09-25 01:40:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:40:23,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-09-25 01:40:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:23,216 INFO L225 Difference]: With dead ends: 893 [2020-09-25 01:40:23,216 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:40:23,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:40:23,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:40:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:40:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:40:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:40:23,220 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 329 [2020-09-25 01:40:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:23,220 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:40:23,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:40:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:40:23,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:40:23,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:40:23,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:40:23,596 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:23,949 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:24,293 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:24,687 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:24,978 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:25,269 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:25,550 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:25,873 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:26,157 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:26,455 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-25 01:40:26,746 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-25 01:40:27,048 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:27,337 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:27,868 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-25 01:40:28,370 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-25 01:40:28,650 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:28,929 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:29,245 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:29,383 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 01:40:29,663 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:29,951 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-25 01:40:30,238 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-09-25 01:40:30,522 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:30,644 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-25 01:40:31,151 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-25 01:40:31,648 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 44 [2020-09-25 01:40:31,783 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-09-25 01:40:32,064 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2020-09-25 01:40:32,343 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 175