/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:31:08,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:31:08,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:31:08,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:31:08,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:31:08,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:31:08,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:31:08,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:31:08,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:31:08,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:31:08,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:31:08,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:31:08,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:31:08,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:31:08,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:31:08,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:31:08,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:31:08,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:31:08,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:31:08,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:31:08,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:31:08,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:31:08,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:31:08,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:31:08,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:31:08,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:31:08,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:31:08,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:31:08,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:31:08,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:31:08,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:31:08,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:31:08,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:31:08,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:31:08,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:31:08,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:31:08,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:31:08,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:31:08,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:31:08,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:31:08,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:31:08,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 15:31:08,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:31:08,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:31:08,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:31:08,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:31:08,258 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:31:08,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:31:08,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:31:08,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:31:08,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:31:08,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:31:08,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:31:08,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:31:08,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:31:08,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:31:08,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:31:08,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:31:08,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:31:08,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:31:08,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:31:08,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:31:08,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:31:08,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:31:08,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:31:08,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:31:08,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:31:08,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:31:08,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:31:08,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:31:08,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:31:08,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:31:08,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:31:08,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:31:08,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:31:08,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:31:08,717 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:31:08,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-10-27 15:31:08,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e406061f8/6d67f6ac47e04e1684997b25e7628ce2/FLAGc6c785d00 [2020-10-27 15:31:09,531 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:31:09,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-10-27 15:31:09,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e406061f8/6d67f6ac47e04e1684997b25e7628ce2/FLAGc6c785d00 [2020-10-27 15:31:09,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e406061f8/6d67f6ac47e04e1684997b25e7628ce2 [2020-10-27 15:31:09,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:31:09,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:31:09,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:31:09,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:31:09,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:31:09,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:31:09" (1/1) ... [2020-10-27 15:31:09,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396e584c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:09, skipping insertion in model container [2020-10-27 15:31:09,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:31:09" (1/1) ... [2020-10-27 15:31:09,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:31:09,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:31:10,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:31:10,413 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:31:10,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:31:10,652 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:31:10,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10 WrapperNode [2020-10-27 15:31:10,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:31:10,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:31:10,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:31:10,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:31:10,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (1/1) ... [2020-10-27 15:31:10,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:31:10,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:31:10,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:31:10,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:31:10,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (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 [2020-10-27 15:31:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:31:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:31:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:31:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:31:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:31:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:31:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:31:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:31:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:31:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:31:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:31:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:31:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:31:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:31:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:31:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:31:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:31:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:31:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:31:12,491 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:31:12,492 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:31:12,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:31:12 BoogieIcfgContainer [2020-10-27 15:31:12,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:31:12,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:31:12,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:31:12,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:31:12,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:31:09" (1/3) ... [2020-10-27 15:31:12,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb3fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:31:12, skipping insertion in model container [2020-10-27 15:31:12,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:10" (2/3) ... [2020-10-27 15:31:12,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb3fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:31:12, skipping insertion in model container [2020-10-27 15:31:12,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:31:12" (3/3) ... [2020-10-27 15:31:12,503 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-10-27 15:31:12,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:31:12,522 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:31:12,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:31:12,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:31:12,567 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:31:12,567 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:31:12,567 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:31:12,567 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:31:12,568 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:31:12,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:31:12,568 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:31:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:31:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 15:31:12,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:12,611 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] [2020-10-27 15:31:12,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:12,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:12,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1519427313, now seen corresponding path program 1 times [2020-10-27 15:31:12,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:12,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118543037] [2020-10-27 15:31:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:12,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:14,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:14,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 15:31:14,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:31:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2017 [2020-10-27 15:31:14,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:14,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:31:14,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:31:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-27 15:31:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:31:15,244 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:31:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:15,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:15,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 15:31:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:31:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:15,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118543037] [2020-10-27 15:31:15,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:31:15,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 15:31:15,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921375646] [2020-10-27 15:31:15,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:31:15,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:15,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:31:15,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:31:15,411 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-27 15:31:15,577 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:31:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:31:17,377 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-27 15:31:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:31:17,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-10-27 15:31:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:31:17,395 INFO L225 Difference]: With dead ends: 562 [2020-10-27 15:31:17,395 INFO L226 Difference]: Without dead ends: 287 [2020-10-27 15:31:17,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:31:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-27 15:31:17,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-27 15:31:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 15:31:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-27 15:31:17,501 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 120 [2020-10-27 15:31:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:31:17,503 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-27 15:31:17,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:31:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-27 15:31:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 15:31:17,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:17,509 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 15:31:17,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:31:17,509 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:17,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:17,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1048280658, now seen corresponding path program 1 times [2020-10-27 15:31:17,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:17,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882040858] [2020-10-27 15:31:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:17,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:19,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:22,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:22,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-27 15:31:22,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:31:22,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4468 [2020-10-27 15:31:22,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:22,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:31:22,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:31:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 15:31:22,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:22,690 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-10-27 15:31:22,902 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-27 15:31:23,178 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-27 15:31:23,505 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 50 [2020-10-27 15:31:23,796 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 46 [2020-10-27 15:31:24,051 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 42 [2020-10-27 15:31:24,298 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2020-10-27 15:31:24,530 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 34 [2020-10-27 15:31:24,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:24,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:24,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:24,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:24,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:31:24,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:31:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:31:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:24,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:31:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:24,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:24,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:31:24,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:24,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 15:31:24,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:31:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:25,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882040858] [2020-10-27 15:31:25,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:31:25,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:31:25,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364776370] [2020-10-27 15:31:25,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:31:25,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:25,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:31:25,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:31:25,024 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 13 states. [2020-10-27 15:31:25,523 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 15:31:25,828 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-27 15:31:26,502 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 142 [2020-10-27 15:31:27,125 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2020-10-27 15:31:27,717 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 136 [2020-10-27 15:31:27,982 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-10-27 15:31:28,726 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 133 [2020-10-27 15:31:29,644 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 128 [2020-10-27 15:31:30,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:31:30,350 INFO L93 Difference]: Finished difference Result 639 states and 952 transitions. [2020-10-27 15:31:30,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 15:31:30,351 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 129 [2020-10-27 15:31:30,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:31:30,362 INFO L225 Difference]: With dead ends: 639 [2020-10-27 15:31:30,362 INFO L226 Difference]: Without dead ends: 364 [2020-10-27 15:31:30,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-27 15:31:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-10-27 15:31:30,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 358. [2020-10-27 15:31:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-27 15:31:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 484 transitions. [2020-10-27 15:31:30,422 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 484 transitions. Word has length 129 [2020-10-27 15:31:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:31:30,423 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 484 transitions. [2020-10-27 15:31:30,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:31:30,423 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 484 transitions. [2020-10-27 15:31:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-27 15:31:30,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:30,430 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-27 15:31:30,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:31:30,430 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:30,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:30,431 INFO L82 PathProgramCache]: Analyzing trace with hash -998211190, now seen corresponding path program 1 times [2020-10-27 15:31:30,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:30,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41054698] [2020-10-27 15:31:30,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:30,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:30,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:31,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:33,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:35,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:35,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 15:31:35,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:31:35,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 15:31:35,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:31:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 15:31:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-27 15:31:35,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:35,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:35,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:35,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:35,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:35,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:31:35,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:31:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:31:35,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:35,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:31:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:35,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:35,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:35,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:31:35,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:35,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:31:35,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 15:31:35,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:31:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:35,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41054698] [2020-10-27 15:31:35,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:31:35,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:31:35,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536504048] [2020-10-27 15:31:35,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:31:35,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:35,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:31:35,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:31:35,818 INFO L87 Difference]: Start difference. First operand 358 states and 484 transitions. Second operand 6 states. [2020-10-27 15:31:38,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:31:38,185 INFO L93 Difference]: Finished difference Result 1262 states and 1803 transitions. [2020-10-27 15:31:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:31:38,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-10-27 15:31:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:31:38,199 INFO L225 Difference]: With dead ends: 1262 [2020-10-27 15:31:38,199 INFO L226 Difference]: Without dead ends: 910 [2020-10-27 15:31:38,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:31:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-10-27 15:31:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 767. [2020-10-27 15:31:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-10-27 15:31:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1056 transitions. [2020-10-27 15:31:38,286 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1056 transitions. Word has length 133 [2020-10-27 15:31:38,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:31:38,287 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1056 transitions. [2020-10-27 15:31:38,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:31:38,296 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1056 transitions. [2020-10-27 15:31:38,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-27 15:31:38,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:38,305 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:31:38,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:31:38,306 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:38,306 INFO L82 PathProgramCache]: Analyzing trace with hash -81517374, now seen corresponding path program 1 times [2020-10-27 15:31:38,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:38,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406800084] [2020-10-27 15:31:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:38,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:38,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:39,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:39,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:39,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1285 [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 15:31:39,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:39,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:39,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:39,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:39,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:39,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:39,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:31:39,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:39,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:31:39,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:31:39,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:40,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:31:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:40,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:40,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:40,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:31:40,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:40,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 15:31:40,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 15:31:40,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:40,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406800084] [2020-10-27 15:31:40,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:31:40,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:31:40,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273465709] [2020-10-27 15:31:40,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:31:40,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:40,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:31:40,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:31:40,202 INFO L87 Difference]: Start difference. First operand 767 states and 1056 transitions. Second operand 5 states. [2020-10-27 15:31:40,532 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 15:31:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:31:41,767 INFO L93 Difference]: Finished difference Result 1613 states and 2279 transitions. [2020-10-27 15:31:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:31:41,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-10-27 15:31:41,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:31:41,774 INFO L225 Difference]: With dead ends: 1613 [2020-10-27 15:31:41,774 INFO L226 Difference]: Without dead ends: 771 [2020-10-27 15:31:41,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:31:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-27 15:31:41,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 767. [2020-10-27 15:31:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-10-27 15:31:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1050 transitions. [2020-10-27 15:31:41,815 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1050 transitions. Word has length 137 [2020-10-27 15:31:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:31:41,816 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1050 transitions. [2020-10-27 15:31:41,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:31:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1050 transitions. [2020-10-27 15:31:41,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 15:31:41,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:41,820 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:31:41,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:31:41,820 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:41,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1627867954, now seen corresponding path program 1 times [2020-10-27 15:31:41,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:41,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370986357] [2020-10-27 15:31:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:41,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:41,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:43,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:43,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:43,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-27 15:31:43,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:31:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1651 [2020-10-27 15:31:43,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:31:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 15:31:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 15:31:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:43,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:43,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:43,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:43,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:31:43,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:31:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:31:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:31:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:43,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:43,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 15:31:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 15:31:43,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 15:31:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:44,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370986357] [2020-10-27 15:31:44,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:31:44,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:31:44,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420446164] [2020-10-27 15:31:44,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:31:44,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:31:44,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:31:44,033 INFO L87 Difference]: Start difference. First operand 767 states and 1050 transitions. Second operand 5 states. [2020-10-27 15:31:44,421 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 15:31:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:31:45,665 INFO L93 Difference]: Finished difference Result 1608 states and 2260 transitions. [2020-10-27 15:31:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:31:45,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-10-27 15:31:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:31:45,676 INFO L225 Difference]: With dead ends: 1608 [2020-10-27 15:31:45,676 INFO L226 Difference]: Without dead ends: 771 [2020-10-27 15:31:45,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:31:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-27 15:31:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 767. [2020-10-27 15:31:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-10-27 15:31:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1045 transitions. [2020-10-27 15:31:45,728 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1045 transitions. Word has length 145 [2020-10-27 15:31:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:31:45,728 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1045 transitions. [2020-10-27 15:31:45,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:31:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1045 transitions. [2020-10-27 15:31:45,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 15:31:45,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:45,734 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:31:45,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:31:45,734 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:45,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:45,735 INFO L82 PathProgramCache]: Analyzing trace with hash 665243242, now seen corresponding path program 1 times [2020-10-27 15:31:45,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:45,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223276183] [2020-10-27 15:31:45,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:45,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:47,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:48,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:49,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:49,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 15:31:49,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:31:49,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3700 [2020-10-27 15:31:49,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:31:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 15:31:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 15:31:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:49,890 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-10-27 15:31:50,023 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-10-27 15:31:50,196 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-10-27 15:31:50,360 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2020-10-27 15:31:50,538 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2020-10-27 15:31:50,751 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 39 [2020-10-27 15:31:50,966 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-27 15:31:51,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:51,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:51,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:31:51,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:51,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:31:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:51,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:51,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:51,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 15:31:51,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:51,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 15:31:51,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:51,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 15:31:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:51,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223276183] [2020-10-27 15:31:51,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:31:51,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:31:51,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417884325] [2020-10-27 15:31:51,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:31:51,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:51,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:31:51,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:31:51,369 INFO L87 Difference]: Start difference. First operand 767 states and 1045 transitions. Second operand 13 states. [2020-10-27 15:31:52,133 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 15:31:52,352 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 15:31:52,852 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-10-27 15:31:53,646 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2020-10-27 15:31:54,186 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-27 15:31:54,924 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2020-10-27 15:31:55,691 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2020-10-27 15:31:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:31:56,065 INFO L93 Difference]: Finished difference Result 1597 states and 2232 transitions. [2020-10-27 15:31:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:31:56,066 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 149 [2020-10-27 15:31:56,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:31:56,071 INFO L225 Difference]: With dead ends: 1597 [2020-10-27 15:31:56,071 INFO L226 Difference]: Without dead ends: 836 [2020-10-27 15:31:56,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:31:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-27 15:31:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 832. [2020-10-27 15:31:56,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-10-27 15:31:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1120 transitions. [2020-10-27 15:31:56,107 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1120 transitions. Word has length 149 [2020-10-27 15:31:56,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:31:56,107 INFO L481 AbstractCegarLoop]: Abstraction has 832 states and 1120 transitions. [2020-10-27 15:31:56,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:31:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1120 transitions. [2020-10-27 15:31:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 15:31:56,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:56,111 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:31:56,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:31:56,112 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:56,112 INFO L82 PathProgramCache]: Analyzing trace with hash -844828254, now seen corresponding path program 1 times [2020-10-27 15:31:56,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:56,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720969491] [2020-10-27 15:31:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:56,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:56,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:57,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:59,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:59,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-27 15:31:59,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:31:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3546 [2020-10-27 15:31:59,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:31:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 15:31:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 15:31:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:00,131 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-27 15:32:00,318 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-10-27 15:32:00,500 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-27 15:32:00,685 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2020-10-27 15:32:00,875 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 36 [2020-10-27 15:32:01,073 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 33 [2020-10-27 15:32:01,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:01,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:01,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:01,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:01,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:32:01,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:01,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:01,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:01,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 15:32:01,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:01,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720969491] [2020-10-27 15:32:01,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:01,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:32:01,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157515693] [2020-10-27 15:32:01,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:32:01,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:01,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:32:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:32:01,401 INFO L87 Difference]: Start difference. First operand 832 states and 1120 transitions. Second operand 13 states. [2020-10-27 15:32:02,014 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 15:32:02,233 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 15:32:02,871 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2020-10-27 15:32:03,528 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 121 [2020-10-27 15:32:03,983 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 120 [2020-10-27 15:32:04,678 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 119 [2020-10-27 15:32:05,325 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 117 [2020-10-27 15:32:05,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:05,749 INFO L93 Difference]: Finished difference Result 1724 states and 2379 transitions. [2020-10-27 15:32:05,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:32:05,751 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 153 [2020-10-27 15:32:05,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:05,756 INFO L225 Difference]: With dead ends: 1724 [2020-10-27 15:32:05,757 INFO L226 Difference]: Without dead ends: 898 [2020-10-27 15:32:05,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-27 15:32:05,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-27 15:32:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 894. [2020-10-27 15:32:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-27 15:32:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-10-27 15:32:05,797 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 153 [2020-10-27 15:32:05,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:05,798 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-10-27 15:32:05,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:32:05,798 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-10-27 15:32:05,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-27 15:32:05,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:05,803 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:32:05,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:32:05,803 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:05,804 INFO L82 PathProgramCache]: Analyzing trace with hash 71386542, now seen corresponding path program 1 times [2020-10-27 15:32:05,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:05,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427977716] [2020-10-27 15:32:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:05,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:05,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:07,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-27 15:32:07,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:32:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1968 [2020-10-27 15:32:07,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:32:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 15:32:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:32:08,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:08,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:08,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:08,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:08,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:32:08,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:08,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:08,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:32:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:08,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427977716] [2020-10-27 15:32:08,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:08,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:08,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854619911] [2020-10-27 15:32:08,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:08,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:08,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:08,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:08,239 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 5 states. [2020-10-27 15:32:08,845 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 15:32:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:09,874 INFO L93 Difference]: Finished difference Result 1864 states and 2552 transitions. [2020-10-27 15:32:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:09,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-10-27 15:32:09,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:09,883 INFO L225 Difference]: With dead ends: 1864 [2020-10-27 15:32:09,884 INFO L226 Difference]: Without dead ends: 898 [2020-10-27 15:32:09,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-27 15:32:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 894. [2020-10-27 15:32:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-27 15:32:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1190 transitions. [2020-10-27 15:32:09,922 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1190 transitions. Word has length 163 [2020-10-27 15:32:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:09,922 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1190 transitions. [2020-10-27 15:32:09,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1190 transitions. [2020-10-27 15:32:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-27 15:32:09,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:09,927 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:32:09,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:32:09,927 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:09,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1598612662, now seen corresponding path program 1 times [2020-10-27 15:32:09,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:09,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686612212] [2020-10-27 15:32:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:09,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:10,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:10,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:10,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:11,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:11,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 15:32:11,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:32:11,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1317 [2020-10-27 15:32:11,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-27 15:32:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-27 15:32:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:11,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:11,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:11,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:11,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:11,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:11,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:11,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:11,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 15:32:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 15:32:11,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 15:32:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:11,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686612212] [2020-10-27 15:32:11,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:11,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:32:11,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035508379] [2020-10-27 15:32:11,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:32:11,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:11,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:32:11,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:11,604 INFO L87 Difference]: Start difference. First operand 894 states and 1190 transitions. Second operand 6 states. [2020-10-27 15:32:13,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:13,347 INFO L93 Difference]: Finished difference Result 2334 states and 3211 transitions. [2020-10-27 15:32:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:13,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-10-27 15:32:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:13,359 INFO L225 Difference]: With dead ends: 2334 [2020-10-27 15:32:13,359 INFO L226 Difference]: Without dead ends: 1446 [2020-10-27 15:32:13,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:32:13,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2020-10-27 15:32:13,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1307. [2020-10-27 15:32:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-10-27 15:32:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1710 transitions. [2020-10-27 15:32:13,413 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1710 transitions. Word has length 165 [2020-10-27 15:32:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:13,413 INFO L481 AbstractCegarLoop]: Abstraction has 1307 states and 1710 transitions. [2020-10-27 15:32:13,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:32:13,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1710 transitions. [2020-10-27 15:32:13,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-27 15:32:13,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:13,419 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:32:13,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:32:13,420 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:13,420 INFO L82 PathProgramCache]: Analyzing trace with hash -550043206, now seen corresponding path program 1 times [2020-10-27 15:32:13,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:13,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660720085] [2020-10-27 15:32:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:13,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:13,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:14,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:14,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 15:32:14,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:32:14,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-27 15:32:14,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-27 15:32:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 15:32:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:14,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:14,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:14,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 15:32:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:15,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660720085] [2020-10-27 15:32:15,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:15,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:15,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340936519] [2020-10-27 15:32:15,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:15,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:15,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:15,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:15,010 INFO L87 Difference]: Start difference. First operand 1307 states and 1710 transitions. Second operand 5 states. [2020-10-27 15:32:15,632 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:32:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:16,564 INFO L93 Difference]: Finished difference Result 2696 states and 3592 transitions. [2020-10-27 15:32:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:16,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2020-10-27 15:32:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:16,577 INFO L225 Difference]: With dead ends: 2696 [2020-10-27 15:32:16,577 INFO L226 Difference]: Without dead ends: 1311 [2020-10-27 15:32:16,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:16,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-10-27 15:32:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-10-27 15:32:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-10-27 15:32:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1695 transitions. [2020-10-27 15:32:16,630 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1695 transitions. Word has length 173 [2020-10-27 15:32:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:16,631 INFO L481 AbstractCegarLoop]: Abstraction has 1307 states and 1695 transitions. [2020-10-27 15:32:16,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1695 transitions. [2020-10-27 15:32:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-27 15:32:16,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:16,637 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:32:16,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:32:16,638 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:16,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1732170549, now seen corresponding path program 1 times [2020-10-27 15:32:16,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:16,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999934880] [2020-10-27 15:32:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:16,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:16,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:17,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:17,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:21,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:21,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-27 15:32:21,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 15:32:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 15:32:21,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-27 15:32:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 15:32:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:21,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:21,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:21,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:21,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:21,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:32:21,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:21,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:21,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:21,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:21,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:32:21,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:32:21,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:21,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 15:32:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:21,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:21,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:21,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 15:32:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:21,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:21,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 15:32:21,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 82 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-27 15:32:22,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999934880] [2020-10-27 15:32:22,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:22,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:22,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291622680] [2020-10-27 15:32:22,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:22,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:22,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:22,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:22,142 INFO L87 Difference]: Start difference. First operand 1307 states and 1695 transitions. Second operand 5 states. [2020-10-27 15:32:23,038 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 15:32:23,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:23,656 INFO L93 Difference]: Finished difference Result 2558 states and 3344 transitions. [2020-10-27 15:32:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:23,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-27 15:32:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:23,660 INFO L225 Difference]: With dead ends: 2558 [2020-10-27 15:32:23,660 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:32:23,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:23,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:32:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:32:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:32:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:32:23,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2020-10-27 15:32:23,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:23,668 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:32:23,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:23,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:32:23,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:32:23,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:32:23,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:32:24,503 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 61 [2020-10-27 15:32:24,831 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 50 [2020-10-27 15:32:25,000 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 28 [2020-10-27 15:32:26,450 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 273 DAG size of output: 106 [2020-10-27 15:32:26,662 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-27 15:32:26,793 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:32:26,997 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-10-27 15:32:27,307 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 77 [2020-10-27 15:32:27,312 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:32:27,312 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:32:27,312 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:32:27,313 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:32:27,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:32:27,313 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-27 15:32:27,313 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,314 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-27 15:32:27,315 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-27 15:32:27,315 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-27 15:32:27,315 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-27 15:32:27,315 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-27 15:32:27,315 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-27 15:32:27,315 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-27 15:32:27,316 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-27 15:32:27,316 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-27 15:32:27,316 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-27 15:32:27,316 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-27 15:32:27,317 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,318 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-27 15:32:27,319 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,320 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-27 15:32:27,321 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-27 15:32:27,322 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,323 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,324 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-27 15:32:27,325 INFO L270 CegarLoopResult]: At program point L517(line 517) the Hoare annotation is: (let ((.cse0 (not (= |old(~a8~0)| 13))) (.cse1 (not (= |old(~a21~0)| 1))) (.cse2 (not (= ~a12~0 8))) (.cse3 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~a7~0)| 0)) .cse3 (not (= 0 |old(~a17~0)|))) (not (= |old(~a17~0)| 1)) (not (<= 14 |old(~a8~0)|)) (or (not (< 0 |old(~a7~0)|)) (not (<= 4 |old(~a16~0)|)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a7~0)| 1)) (not (<= |old(~a17~0)| 0)) (not (< 12 |old(~a8~0)|)) (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6))) .cse2 (not (< 0 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or .cse0 (= |old(~a20~0)| 1) .cse1 .cse2 .cse3 (= |old(~a7~0)| 1)) (not (<= 6 |old(~a16~0)|)))) [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L517-1(line 517) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-27 15:32:27,326 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-27 15:32:27,327 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-27 15:32:27,328 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-27 15:32:27,328 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,328 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,328 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse10 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse11 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|))) (let ((.cse1 (not (= |old(~a8~0)| 13))) (.cse3 (= ~a21~0 1)) (.cse5 (= ~a8~0 13)) (.cse6 (= ~a16~0 4)) (.cse7 (not (= |old(~a21~0)| 1))) (.cse9 (not (= 4 |old(~a16~0)|))) (.cse0 (and .cse10 .cse2 .cse11 .cse4 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) (.cse8 (not (= ~a12~0 8)))) (and (or .cse0 (not (<= 6 |old(~a16~0)|))) (or (not (<= 14 |old(~a8~0)|)) .cse0) (or .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 (= ~a7~0 0)) .cse7 .cse8 (not (= |old(~a7~0)| 0)) .cse9 (not (= 0 |old(~a17~0)|))) (or .cse1 (= |old(~a20~0)| 1) (and .cse10 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9 (= |old(~a7~0)| 1)) (or (not (= |old(~a17~0)| 1)) .cse0) (or (and .cse10 .cse2 (< 12 ~a8~0) .cse11 .cse4 (<= ~a16~0 4) (<= 4 ~a16~0) (<= ~a8~0 13)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a7~0)| 1)) (not (<= |old(~a17~0)| 0)) (not (<= |old(~a20~0)| 1)) (not (< 0 |old(~a7~0)|)) (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 13)) (not (< 12 |old(~a8~0)|)) (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6))) .cse8 (not (< 0 |old(~a20~0)|)))))) [2020-10-27 15:32:27,328 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,328 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-27 15:32:27,329 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-27 15:32:27,330 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:27,331 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-27 15:32:27,332 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:32:27,333 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 14 ~a8~0) (not (= ~a16~0 4)) (= ~a17~0 1)) [2020-10-27 15:32:27,333 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:32:27,333 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:32:27,333 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 14 |old(~a8~0)|)) (= 4 |old(~a16~0)|) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-10-27 15:32:27,333 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:32:27,333 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse2 (= ~a8~0 13)) (.cse3 (= ~a16~0 4)) (.cse1 (= ~a12~0 8))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~a7~0 0) (= ~a17~0 0)) (not (= |old(~a17~0)| 1)) (<= 14 ~a8~0) (<= 6 ~a16~0) (not (<= 14 |old(~a8~0)|)) (= 4 |old(~a16~0)|) (and .cse0 .cse1 .cse2 .cse3 (not (= ~a7~0 1)) (not (= ~a20~0 1))) (= ~a17~0 1) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a20~0) (<= ~a16~0 4) (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0)) .cse1 (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a20~0 1) (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0))))) [2020-10-27 15:32:27,333 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-27 15:32:27,333 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-27 15:32:27,334 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a12~0 8)) (.cse2 (= ~a8~0 13)) (.cse3 (= ~a16~0 4))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~a7~0 0) (= ~a17~0 0)) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a20~0) (<= ~a16~0 4) .cse1 (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a20~0 1) (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0))) (not (= |old(~a17~0)| 1)) (<= 14 ~a8~0) (<= 6 ~a16~0) (not (<= 14 |old(~a8~0)|)) (= 4 |old(~a16~0)|) (and .cse0 .cse1 .cse2 .cse3 (not (= ~a7~0 1)) (not (= ~a20~0 1))) (= ~a17~0 1))) [2020-10-27 15:32:27,334 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:32:27,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:32:27 BoogieIcfgContainer [2020-10-27 15:32:27,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:32:27,356 INFO L168 Benchmark]: Toolchain (without parser) took 77651.73 ms. Allocated memory was 151.0 MB in the beginning and 769.7 MB in the end (delta: 618.7 MB). Free memory was 104.0 MB in the beginning and 709.0 MB in the end (delta: -605.0 MB). Peak memory consumption was 444.3 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:27,357 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 151.0 MB. Free memory is still 122.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:32:27,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 941.28 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 124.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:27,358 INFO L168 Benchmark]: Boogie Preprocessor took 145.52 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 119.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:27,359 INFO L168 Benchmark]: RCFGBuilder took 1693.31 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 119.4 MB in the beginning and 159.1 MB in the end (delta: -39.7 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:27,359 INFO L168 Benchmark]: TraceAbstraction took 74858.48 ms. Allocated memory was 194.0 MB in the beginning and 769.7 MB in the end (delta: 575.7 MB). Free memory was 158.6 MB in the beginning and 709.0 MB in the end (delta: -550.4 MB). Peak memory consumption was 455.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:27,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 151.0 MB. Free memory is still 122.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 941.28 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 124.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.52 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 119.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1693.31 ms. Allocated memory was 151.0 MB in the beginning and 194.0 MB in the end (delta: 43.0 MB). Free memory was 119.4 MB in the beginning and 159.1 MB in the end (delta: -39.7 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 74858.48 ms. Allocated memory was 194.0 MB in the beginning and 769.7 MB in the end (delta: 575.7 MB). Free memory was 158.6 MB in the beginning and 709.0 MB in the end (delta: -550.4 MB). Peak memory consumption was 455.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((a21 == 1 && a12 == 8) && a8 == 13) && a16 == 4) && a7 == 0) && a17 == 0) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && a16 <= 4) && a12 == 8) && a17 <= 0) && 4 <= a16) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0))) || !(\old(a17) == 1)) || 14 <= a8) || 6 <= a16) || !(14 <= \old(a8))) || 4 == \old(a16)) || (((((a21 == 1 && a12 == 8) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || a17 == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.1s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 274 SDtfs, 3266 SDslu, 283 SDs, 0 SdLazy, 8504 SolverSat, 900 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 67 SyntacticMatches, 7 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 15.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1307occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 318 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 187 PreInvPairs, 219 NumberOfFragments, 734 HoareAnnotationTreeSize, 187 FomulaSimplifications, 430266 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2499 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 39.9s InterpolantComputationTime, 1675 NumberOfCodeBlocks, 1675 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1664 ConstructedInterpolants, 0 QuantifiedInterpolants, 3622616 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 347/359 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...