/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:58:45,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:58:45,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:58:45,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:58:45,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:58:45,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:58:45,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:58:45,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:58:45,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:58:45,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:58:45,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:58:45,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:58:45,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:58:45,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:58:45,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:58:45,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:58:45,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:58:45,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:58:45,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:58:45,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:58:45,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:58:45,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:58:45,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:58:45,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:58:45,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:58:45,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:58:45,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:58:45,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:58:45,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:58:45,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:58:45,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:58:45,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:58:45,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:58:45,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:58:45,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:58:45,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:58:45,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:58:45,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:58:45,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:58:45,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:58:45,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:58:45,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 18:58:45,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:58:45,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:58:45,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:58:45,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:58:45,693 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:58:45,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:58:45,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:58:45,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:58:45,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:58:45,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:58:45,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:58:45,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:58:45,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:58:45,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:58:45,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:58:45,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:58:45,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:58:45,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:58:45,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:58:45,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:58:45,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:58:45,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:58:45,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:58:45,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:58:45,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:58:45,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:58:45,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 18:58:45,701 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:58:46,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:58:46,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:58:46,213 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:58:46,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:58:46,215 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:58:46,217 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 18:58:46,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/932ecfc20/ddce329bee27448e85ac941a703d79c2/FLAGabd9430a7 [2020-09-24 18:58:47,114 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:58:47,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 18:58:47,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/932ecfc20/ddce329bee27448e85ac941a703d79c2/FLAGabd9430a7 [2020-09-24 18:58:47,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/932ecfc20/ddce329bee27448e85ac941a703d79c2 [2020-09-24 18:58:47,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:58:47,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:58:47,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:58:47,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:58:47,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:58:47,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:58:47" (1/1) ... [2020-09-24 18:58:47,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2278f003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:47, skipping insertion in model container [2020-09-24 18:58:47,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:58:47" (1/1) ... [2020-09-24 18:58:47,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:58:47,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:58:48,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:58:48,425 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:58:48,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:58:48,701 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:58:48,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48 WrapperNode [2020-09-24 18:58:48,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:58:48,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:58:48,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:58:48,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:58:48,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... [2020-09-24 18:58:48,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:58:48,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:58:48,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:58:48,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:58:48,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:58:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:58:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:58:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 18:58:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-24 18:58:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-24 18:58:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2020-09-24 18:58:48,984 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2020-09-24 18:58:48,984 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2020-09-24 18:58:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2020-09-24 18:58:48,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_get_voltage_sel [2020-09-24 18:58:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_set_voltage_sel [2020-09-24 18:58:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_probe [2020-09-24 18:58:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_remove [2020-09-24 18:58:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_init [2020-09-24 18:58:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isl6271a_cleanup [2020-09-24 18:58:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:58:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 18:58:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 18:58:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 18:58:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 18:58:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 18:58:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 18:58:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 18:58:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-09-24 18:58:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-09-24 18:58:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-09-24 18:58:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-09-24 18:58:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 18:58:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 18:58:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 18:58:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 18:58:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 18:58:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 18:58:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 18:58:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 18:58:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 18:58:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 18:58:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 18:58:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 18:58:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 18:58:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 18:58:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 18:58:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 18:58:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 18:58:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 18:58:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 18:58:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 18:58:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 18:58:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 18:58:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:58:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 18:58:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 18:58:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 18:58:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2020-09-24 18:58:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2020-09-24 18:58:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2020-09-24 18:58:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte [2020-09-24 18:58:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte [2020-09-24 18:58:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 18:58:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 18:58:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 18:58:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2020-09-24 18:58:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2020-09-24 18:58:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_map_voltage_linear [2020-09-24 18:58:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_register [2020-09-24 18:58:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2020-09-24 18:58:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 18:58:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:58:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 18:58:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-24 18:58:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-24 18:58:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-09-24 18:58:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 18:58:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 18:58:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 18:58:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 18:58:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 18:58:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 18:58:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2020-09-24 18:58:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2020-09-24 18:58:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 18:58:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 18:58:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 18:58:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:58:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_register [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2020-09-24 18:58:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2020-09-24 18:58:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_map_voltage_linear [2020-09-24 18:58:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte [2020-09-24 18:58:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte [2020-09-24 18:58:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2020-09-24 18:58:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2020-09-24 18:58:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2020-09-24 18:58:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2020-09-24 18:58:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2020-09-24 18:58:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2020-09-24 18:58:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:58:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2020-09-24 18:58:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_get_voltage_sel [2020-09-24 18:58:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:58:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_set_voltage_sel [2020-09-24 18:58:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_probe [2020-09-24 18:58:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:58:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:58:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:58:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_remove [2020-09-24 18:58:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_init [2020-09-24 18:58:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure isl6271a_cleanup [2020-09-24 18:58:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 18:58:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 18:58:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:58:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 18:58:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 18:58:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 18:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 18:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 18:58:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 18:58:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 18:58:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isl_pmic [2020-09-24 18:58:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mtx_of_isl_pmic [2020-09-24 18:58:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mtx_of_isl_pmic [2020-09-24 18:58:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mtx_of_isl_pmic [2020-09-24 18:58:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mtx_of_isl_pmic [2020-09-24 18:58:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 18:58:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 18:58:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 18:58:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 18:58:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 18:58:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:58:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:58:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:58:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 18:58:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:58:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:58:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 18:58:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:58:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:58:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 18:58:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:58:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:58:50,955 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:58:50,955 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:58:50,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:58:50 BoogieIcfgContainer [2020-09-24 18:58:50,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:58:50,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:58:50,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:58:50,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:58:50,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:58:47" (1/3) ... [2020-09-24 18:58:50,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376b49ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:58:50, skipping insertion in model container [2020-09-24 18:58:50,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:48" (2/3) ... [2020-09-24 18:58:50,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376b49ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:58:50, skipping insertion in model container [2020-09-24 18:58:50,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:58:50" (3/3) ... [2020-09-24 18:58:50,986 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2020-09-24 18:58:50,997 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:58:51,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:58:51,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:58:51,066 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:58:51,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:58:51,066 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:58:51,066 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:58:51,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:58:51,066 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:58:51,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:58:51,067 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:58:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-09-24 18:58:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-24 18:58:51,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:58:51,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:58:51,133 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:58:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:58:51,141 INFO L82 PathProgramCache]: Analyzing trace with hash -945339618, now seen corresponding path program 1 times [2020-09-24 18:58:51,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:58:51,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660406675] [2020-09-24 18:58:51,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:58:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:51,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:52,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:53,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:53,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-09-24 18:58:53,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:58:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1630 [2020-09-24 18:58:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:58:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-24 18:58:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 18:58:53,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:58:53,773 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:58:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:58:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:54,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:54,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:58:54,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:54,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-24 18:58:54,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:54,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:54,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:54,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:58:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:58:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:54,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:54,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:58:54,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:54,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:58:54,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:54,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:54,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:54,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:58:54,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-09-24 18:58:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:54,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:54,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:58:54,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:58:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:58:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:54,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:58:54,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:58:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:54,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:54,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:54,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:58:54,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:54,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:58:54,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:58:54,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:58:54,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660406675] [2020-09-24 18:58:54,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:58:54,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:58:54,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17632442] [2020-09-24 18:58:54,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:58:54,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:58:54,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:58:54,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:58:54,631 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-09-24 18:58:56,004 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 18:59:00,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:00,804 INFO L93 Difference]: Finished difference Result 1768 states and 2027 transitions. [2020-09-24 18:59:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:59:00,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-09-24 18:59:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:00,837 INFO L225 Difference]: With dead ends: 1768 [2020-09-24 18:59:00,837 INFO L226 Difference]: Without dead ends: 1265 [2020-09-24 18:59:00,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:00,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-09-24 18:59:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1174. [2020-09-24 18:59:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-09-24 18:59:01,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1288 transitions. [2020-09-24 18:59:01,050 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1288 transitions. Word has length 278 [2020-09-24 18:59:01,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:01,051 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1288 transitions. [2020-09-24 18:59:01,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:59:01,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1288 transitions. [2020-09-24 18:59:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-09-24 18:59:01,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:01,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:01,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:59:01,060 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1212320878, now seen corresponding path program 1 times [2020-09-24 18:59:01,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:01,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050180256] [2020-09-24 18:59:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:01,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:01,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-24 18:59:01,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-09-24 18:59:01,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-09-24 18:59:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 18:59:01,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:02,248 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:59:02,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:02,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:02,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:02,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:02,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:02,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 18:59:02,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:02,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:02,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:02,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:02,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:59:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:02,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:02,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:02,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 18:59:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:59:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:02,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 18:59:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:02,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:02,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:02,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:02,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:02,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 18:59:02,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:02,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:02,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 18:59:02,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:02,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:02,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:02,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 18:59:02,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:02,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:59:02,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:02,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:02,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050180256] [2020-09-24 18:59:02,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:02,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:59:02,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184604432] [2020-09-24 18:59:02,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:59:02,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:02,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:59:02,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:59:02,841 INFO L87 Difference]: Start difference. First operand 1174 states and 1288 transitions. Second operand 5 states. [2020-09-24 18:59:04,160 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 18:59:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:06,496 INFO L93 Difference]: Finished difference Result 1262 states and 1391 transitions. [2020-09-24 18:59:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:59:06,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-09-24 18:59:06,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:06,506 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 18:59:06,506 INFO L226 Difference]: Without dead ends: 1259 [2020-09-24 18:59:06,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2020-09-24 18:59:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1173. [2020-09-24 18:59:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-09-24 18:59:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1286 transitions. [2020-09-24 18:59:06,593 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1286 transitions. Word has length 294 [2020-09-24 18:59:06,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:06,594 INFO L479 AbstractCegarLoop]: Abstraction has 1173 states and 1286 transitions. [2020-09-24 18:59:06,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:59:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1286 transitions. [2020-09-24 18:59:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-24 18:59:06,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:06,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:06,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:59:06,600 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:06,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1073058360, now seen corresponding path program 1 times [2020-09-24 18:59:06,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:06,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407232863] [2020-09-24 18:59:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:06,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:07,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:07,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-09-24 18:59:07,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-09-24 18:59:07,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-24 18:59:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 18:59:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:07,653 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:59:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:07,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:07,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:07,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-24 18:59:07,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:07,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:07,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:59:08,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:59:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:08,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:08,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:08,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:08,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 18:59:08,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:08,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:08,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:08,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:59:08,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:08,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 18:59:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:08,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:08,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:08,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 18:59:08,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 18:59:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:08,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:08,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 18:59:08,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:08,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:59:08,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:08,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407232863] [2020-09-24 18:59:08,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:08,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:59:08,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002203244] [2020-09-24 18:59:08,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:59:08,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:08,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:59:08,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:59:08,460 INFO L87 Difference]: Start difference. First operand 1173 states and 1286 transitions. Second operand 5 states. [2020-09-24 18:59:09,655 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 18:59:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:11,915 INFO L93 Difference]: Finished difference Result 1261 states and 1389 transitions. [2020-09-24 18:59:11,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:59:11,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 295 [2020-09-24 18:59:11,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:11,923 INFO L225 Difference]: With dead ends: 1261 [2020-09-24 18:59:11,923 INFO L226 Difference]: Without dead ends: 1258 [2020-09-24 18:59:11,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-24 18:59:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1172. [2020-09-24 18:59:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-09-24 18:59:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1284 transitions. [2020-09-24 18:59:12,005 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1284 transitions. Word has length 295 [2020-09-24 18:59:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:12,006 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1284 transitions. [2020-09-24 18:59:12,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:59:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1284 transitions. [2020-09-24 18:59:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-24 18:59:12,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:12,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:12,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:59:12,012 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:12,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1094634161, now seen corresponding path program 1 times [2020-09-24 18:59:12,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:12,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033763929] [2020-09-24 18:59:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:12,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:12,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:12,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 18:59:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-09-24 18:59:12,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-09-24 18:59:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 18:59:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:13,129 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:59:13,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:13,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:13,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:13,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 18:59:13,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:13,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:13,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:59:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:13,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:13,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:13,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:13,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 18:59:13,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:59:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:13,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 18:59:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:13,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:13,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:13,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:13,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:13,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 18:59:13,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:13,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:13,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 18:59:13,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:13,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:13,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 18:59:13,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:59:13,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:13,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033763929] [2020-09-24 18:59:13,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:13,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:59:13,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231005940] [2020-09-24 18:59:13,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:59:13,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:13,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:59:13,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:59:13,680 INFO L87 Difference]: Start difference. First operand 1172 states and 1284 transitions. Second operand 5 states. [2020-09-24 18:59:15,270 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 18:59:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:17,552 INFO L93 Difference]: Finished difference Result 1262 states and 1388 transitions. [2020-09-24 18:59:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:59:17,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-09-24 18:59:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:17,560 INFO L225 Difference]: With dead ends: 1262 [2020-09-24 18:59:17,560 INFO L226 Difference]: Without dead ends: 1258 [2020-09-24 18:59:17,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-09-24 18:59:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1170. [2020-09-24 18:59:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2020-09-24 18:59:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1279 transitions. [2020-09-24 18:59:17,641 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1279 transitions. Word has length 296 [2020-09-24 18:59:17,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:17,641 INFO L479 AbstractCegarLoop]: Abstraction has 1170 states and 1279 transitions. [2020-09-24 18:59:17,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:59:17,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1279 transitions. [2020-09-24 18:59:17,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-24 18:59:17,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:17,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:17,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:59:17,647 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:17,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:17,647 INFO L82 PathProgramCache]: Analyzing trace with hash -426369557, now seen corresponding path program 1 times [2020-09-24 18:59:17,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:17,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299186842] [2020-09-24 18:59:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:17,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-09-24 18:59:18,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-09-24 18:59:18,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 253 [2020-09-24 18:59:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 18:59:18,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,684 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:59:18,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:18,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-24 18:59:18,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:19,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:59:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:19,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:19,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:19,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:19,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:19,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 18:59:19,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:19,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:59:19,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:19,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 18:59:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:19,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:19,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:19,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 18:59:19,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 18:59:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:19,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:19,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:19,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:19,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 18:59:19,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:19,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:59:19,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:19,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:19,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:19,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299186842] [2020-09-24 18:59:19,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:19,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:59:19,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552047190] [2020-09-24 18:59:19,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:59:19,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:19,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:59:19,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:59:19,185 INFO L87 Difference]: Start difference. First operand 1170 states and 1279 transitions. Second operand 5 states. [2020-09-24 18:59:20,296 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 18:59:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:21,967 INFO L93 Difference]: Finished difference Result 1258 states and 1382 transitions. [2020-09-24 18:59:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:59:21,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-09-24 18:59:21,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:21,974 INFO L225 Difference]: With dead ends: 1258 [2020-09-24 18:59:21,975 INFO L226 Difference]: Without dead ends: 1241 [2020-09-24 18:59:21,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-09-24 18:59:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 717. [2020-09-24 18:59:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-24 18:59:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 770 transitions. [2020-09-24 18:59:22,039 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 770 transitions. Word has length 297 [2020-09-24 18:59:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:22,039 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 770 transitions. [2020-09-24 18:59:22,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:59:22,040 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 770 transitions. [2020-09-24 18:59:22,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-24 18:59:22,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:22,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:22,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:59:22,046 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:22,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:22,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1704679464, now seen corresponding path program 1 times [2020-09-24 18:59:22,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:22,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122146672] [2020-09-24 18:59:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:22,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:22,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:24,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:24,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-09-24 18:59:24,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:59:24,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2708 [2020-09-24 18:59:24,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-09-24 18:59:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 18:59:24,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,246 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:59:25,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:25,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 18:59:25,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:59:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:25,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:59:25,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-09-24 18:59:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 18:59:25,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 18:59:25,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 18:59:25,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:25,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:59:25,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 18:59:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:25,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:59:25,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 18:59:25,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:25,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:59:25,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 18:59:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:59:25,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:59:25,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:25,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:25,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-24 18:59:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:25,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:25,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:59:25,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 18:59:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:25,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122146672] [2020-09-24 18:59:25,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:25,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:59:25,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556808925] [2020-09-24 18:59:25,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:59:25,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:25,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:59:25,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:25,812 INFO L87 Difference]: Start difference. First operand 717 states and 770 transitions. Second operand 7 states. [2020-09-24 18:59:26,925 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-09-24 18:59:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:31,318 INFO L93 Difference]: Finished difference Result 1776 states and 2004 transitions. [2020-09-24 18:59:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:59:31,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-09-24 18:59:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:31,326 INFO L225 Difference]: With dead ends: 1776 [2020-09-24 18:59:31,326 INFO L226 Difference]: Without dead ends: 1311 [2020-09-24 18:59:31,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:59:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-09-24 18:59:31,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1031. [2020-09-24 18:59:31,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-24 18:59:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1118 transitions. [2020-09-24 18:59:31,408 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1118 transitions. Word has length 329 [2020-09-24 18:59:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:31,408 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1118 transitions. [2020-09-24 18:59:31,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:59:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1118 transitions. [2020-09-24 18:59:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-09-24 18:59:31,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:31,416 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:31,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:59:31,417 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:31,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:31,417 INFO L82 PathProgramCache]: Analyzing trace with hash -80114865, now seen corresponding path program 1 times [2020-09-24 18:59:31,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:31,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924457958] [2020-09-24 18:59:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-09-24 18:59:33,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-09-24 18:59:33,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:59:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 364 [2020-09-24 18:59:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 18:59:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,455 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-09-24 18:59:33,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:33,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 18:59:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:33,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 18:59:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:33,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:59:33,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:33,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:33,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-24 18:59:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:33,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:59:33,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 18:59:33,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:59:33,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:33,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:33,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-09-24 18:59:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 18:59:33,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:59:33,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:33,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:33,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:59:33,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2020-09-24 18:59:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 18:59:33,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 18:59:33,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:59:33,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:33,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:33,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:33,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:33,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 18:59:33,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:33,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:33,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:59:33,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:33,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 18:59:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:33,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:34,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:34,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:59:34,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:34,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:59:34,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:34,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:59:34,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-09-24 18:59:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:34,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:34,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:34,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:59:34,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:34,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 18:59:34,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:59:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 18:59:34,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924457958] [2020-09-24 18:59:34,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:34,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:59:34,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859900266] [2020-09-24 18:59:34,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:59:34,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:34,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:59:34,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:59:34,146 INFO L87 Difference]: Start difference. First operand 1031 states and 1118 transitions. Second operand 7 states. [2020-09-24 18:59:37,117 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 171