/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=SHALLOWEST --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/Problem02_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:37:27,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:37:27,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:37:27,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:37:27,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:37:27,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:37:27,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:37:27,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:37:27,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:37:27,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:37:27,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:37:27,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:37:27,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:37:27,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:37:27,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:37:27,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:37:27,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:37:27,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:37:27,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:37:27,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:37:27,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:37:27,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:37:27,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:37:27,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:37:27,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:37:27,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:37:27,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:37:27,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:37:27,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:37:27,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:37:27,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:37:27,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:37:27,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:37:27,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:37:27,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:37:27,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:37:27,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:37:27,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:37:27,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:37:27,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:37:27,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:37:27,236 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 [2020-10-26 20:37:27,262 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:37:27,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:37:27,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:37:27,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:37:27,264 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:37:27,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:37:27,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:37:27,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:37:27,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:37:27,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:37:27,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:37:27,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:37:27,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:37:27,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:37:27,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:37:27,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:37:27,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:37:27,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:37:27,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:37:27,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:37:27,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:37:27,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:37:27,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:37:27,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:37:27,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:37:27,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:37:27,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:37:27,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:37:27,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:37:27,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:37:27,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:37:27,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:37:27,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:37:27,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:37:27,766 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:37:27,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-10-26 20:37:27,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16f244484/5270b9dd9c824c6da9b1302f3b4f750f/FLAG1f1d7dc72 [2020-10-26 20:37:28,528 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:37:28,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-10-26 20:37:28,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16f244484/5270b9dd9c824c6da9b1302f3b4f750f/FLAG1f1d7dc72 [2020-10-26 20:37:28,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16f244484/5270b9dd9c824c6da9b1302f3b4f750f [2020-10-26 20:37:28,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:37:28,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:37:28,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:37:28,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:37:28,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:37:28,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:37:28" (1/1) ... [2020-10-26 20:37:28,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5d40e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:28, skipping insertion in model container [2020-10-26 20:37:28,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:37:28" (1/1) ... [2020-10-26 20:37:28,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:37:28,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:37:29,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:37:29,268 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:37:29,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:37:29,488 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:37:29,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29 WrapperNode [2020-10-26 20:37:29,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:37:29,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:37:29,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:37:29,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:37:29,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (1/1) ... [2020-10-26 20:37:29,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:37:29,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:37:29,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:37:29,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:37:29,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (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 [2020-10-26 20:37:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:37:29,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:37:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:37:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:37:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:37:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:37:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:37:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:37:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:37:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:37:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:37:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:37:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:37:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:37:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:37:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:37:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:37:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:37:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:37:30,850 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:37:30,850 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:37:30,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:37:30 BoogieIcfgContainer [2020-10-26 20:37:30,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:37:30,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:37:30,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:37:30,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:37:30,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:37:28" (1/3) ... [2020-10-26 20:37:30,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f37983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:37:30, skipping insertion in model container [2020-10-26 20:37:30,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:37:29" (2/3) ... [2020-10-26 20:37:30,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f37983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:37:30, skipping insertion in model container [2020-10-26 20:37:30,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:37:30" (3/3) ... [2020-10-26 20:37:30,862 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2020-10-26 20:37:30,874 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:37:30,878 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:37:30,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:37:30,922 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:37:30,922 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:37:30,922 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:37:30,922 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:37:30,922 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:37:30,922 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:37:30,923 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:37:30,923 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:37:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:37:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-26 20:37:30,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:30,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:30,965 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:30,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:30,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1557066117, now seen corresponding path program 1 times [2020-10-26 20:37:30,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:30,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970159681] [2020-10-26 20:37:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:33,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:33,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-26 20:37:33,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:33,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2281 [2020-10-26 20:37:33,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:33,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 20:37:33,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:37:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:37:34,292 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-10-26 20:37:34,460 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-10-26 20:37:34,664 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2020-10-26 20:37:34,824 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2020-10-26 20:37:34,970 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2020-10-26 20:37:35,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:35,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:37:35,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:37:35,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970159681] [2020-10-26 20:37:35,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:37:35,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 20:37:35,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986015798] [2020-10-26 20:37:35,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 20:37:35,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:35,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 20:37:35,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:35,487 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-26 20:37:35,697 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:37:35,888 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-26 20:37:36,070 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-26 20:37:36,305 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-26 20:37:36,963 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 129 [2020-10-26 20:37:37,505 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2020-10-26 20:37:38,327 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 122 [2020-10-26 20:37:39,075 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 117 [2020-10-26 20:37:39,389 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-26 20:37:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:40,518 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-26 20:37:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:37:40,520 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2020-10-26 20:37:40,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:40,535 INFO L225 Difference]: With dead ends: 541 [2020-10-26 20:37:40,535 INFO L226 Difference]: Without dead ends: 237 [2020-10-26 20:37:40,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-26 20:37:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-26 20:37:40,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-26 20:37:40,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-26 20:37:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-26 20:37:40,613 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 133 [2020-10-26 20:37:40,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:40,614 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-26 20:37:40,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 20:37:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-26 20:37:40,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-26 20:37:40,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:40,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:40,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:37:40,620 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:40,621 INFO L82 PathProgramCache]: Analyzing trace with hash -461765434, now seen corresponding path program 1 times [2020-10-26 20:37:40,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:40,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160080054] [2020-10-26 20:37:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:42,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:42,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-26 20:37:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-10-26 20:37:42,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-26 20:37:42,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:42,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:42,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:42,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:42,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:42,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:42,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:42,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:42,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:42,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:42,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:42,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:42,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:42,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:37:42,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160080054] [2020-10-26 20:37:42,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:42,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:42,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109949343] [2020-10-26 20:37:42,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:42,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:42,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:42,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:42,551 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 7 states. [2020-10-26 20:37:44,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:44,338 INFO L93 Difference]: Finished difference Result 612 states and 875 transitions. [2020-10-26 20:37:44,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:44,339 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-26 20:37:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:44,344 INFO L225 Difference]: With dead ends: 612 [2020-10-26 20:37:44,344 INFO L226 Difference]: Without dead ends: 384 [2020-10-26 20:37:44,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:44,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-10-26 20:37:44,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 381. [2020-10-26 20:37:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-26 20:37:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2020-10-26 20:37:44,405 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 142 [2020-10-26 20:37:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:44,406 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2020-10-26 20:37:44,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2020-10-26 20:37:44,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-26 20:37:44,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:44,416 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:44,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:37:44,417 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:44,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1777196561, now seen corresponding path program 1 times [2020-10-26 20:37:44,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:44,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905193973] [2020-10-26 20:37:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:44,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:45,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-26 20:37:46,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2107 [2020-10-26 20:37:46,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:37:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:46,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:46,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:46,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:46,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:46,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:46,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:46,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:46,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:46,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:46,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:46,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:46,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:46,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:37:46,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:47,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905193973] [2020-10-26 20:37:47,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:47,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:47,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798657050] [2020-10-26 20:37:47,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:47,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:47,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:47,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:47,010 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand 8 states. [2020-10-26 20:37:47,161 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:48,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:48,974 INFO L93 Difference]: Finished difference Result 913 states and 1340 transitions. [2020-10-26 20:37:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:48,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2020-10-26 20:37:48,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:48,979 INFO L225 Difference]: With dead ends: 913 [2020-10-26 20:37:48,980 INFO L226 Difference]: Without dead ends: 538 [2020-10-26 20:37:48,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:48,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-26 20:37:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 531. [2020-10-26 20:37:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-10-26 20:37:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 765 transitions. [2020-10-26 20:37:49,020 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 765 transitions. Word has length 157 [2020-10-26 20:37:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:49,021 INFO L481 AbstractCegarLoop]: Abstraction has 531 states and 765 transitions. [2020-10-26 20:37:49,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 765 transitions. [2020-10-26 20:37:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-26 20:37:49,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:49,025 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:49,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:37:49,026 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:49,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:49,026 INFO L82 PathProgramCache]: Analyzing trace with hash -698102251, now seen corresponding path program 1 times [2020-10-26 20:37:49,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:49,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651599558] [2020-10-26 20:37:49,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:49,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:49,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:50,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 20:37:51,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2670 [2020-10-26 20:37:51,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:37:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:51,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:51,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:51,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:37:51,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:51,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:51,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:51,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:51,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:51,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:51,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:37:51,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:37:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-26 20:37:52,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651599558] [2020-10-26 20:37:52,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:52,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:37:52,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452657290] [2020-10-26 20:37:52,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:52,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:52,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:52,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:52,092 INFO L87 Difference]: Start difference. First operand 531 states and 765 transitions. Second operand 7 states. [2020-10-26 20:37:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:53,983 INFO L93 Difference]: Finished difference Result 1384 states and 2035 transitions. [2020-10-26 20:37:53,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:53,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-10-26 20:37:53,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:53,990 INFO L225 Difference]: With dead ends: 1384 [2020-10-26 20:37:53,990 INFO L226 Difference]: Without dead ends: 859 [2020-10-26 20:37:53,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:53,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-26 20:37:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 687. [2020-10-26 20:37:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2020-10-26 20:37:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 973 transitions. [2020-10-26 20:37:54,030 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 973 transitions. Word has length 164 [2020-10-26 20:37:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:54,030 INFO L481 AbstractCegarLoop]: Abstraction has 687 states and 973 transitions. [2020-10-26 20:37:54,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:54,030 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 973 transitions. [2020-10-26 20:37:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:37:54,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:54,035 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:54,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:37:54,035 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:54,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1435717853, now seen corresponding path program 1 times [2020-10-26 20:37:54,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:54,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096258980] [2020-10-26 20:37:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:54,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:54,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:54,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:55,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:56,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-26 20:37:56,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2380 [2020-10-26 20:37:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-26 20:37:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:56,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:56,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:56,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:56,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:56,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:56,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:56,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:56,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:56,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:56,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:56,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:56,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:56,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:56,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:56,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:56,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:37:56,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:37:56,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:37:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:56,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096258980] [2020-10-26 20:37:56,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:56,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:56,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957903080] [2020-10-26 20:37:56,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:56,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:56,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:56,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:56,917 INFO L87 Difference]: Start difference. First operand 687 states and 973 transitions. Second operand 8 states. [2020-10-26 20:37:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:58,777 INFO L93 Difference]: Finished difference Result 1860 states and 2747 transitions. [2020-10-26 20:37:58,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:58,777 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-26 20:37:58,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:58,787 INFO L225 Difference]: With dead ends: 1860 [2020-10-26 20:37:58,787 INFO L226 Difference]: Without dead ends: 1179 [2020-10-26 20:37:58,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2020-10-26 20:37:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1146. [2020-10-26 20:37:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2020-10-26 20:37:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1562 transitions. [2020-10-26 20:37:58,843 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1562 transitions. Word has length 168 [2020-10-26 20:37:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:58,844 INFO L481 AbstractCegarLoop]: Abstraction has 1146 states and 1562 transitions. [2020-10-26 20:37:58,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1562 transitions. [2020-10-26 20:37:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:37:58,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:58,849 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:58,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:58,850 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:58,851 INFO L82 PathProgramCache]: Analyzing trace with hash 689875421, now seen corresponding path program 1 times [2020-10-26 20:37:58,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:58,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113839721] [2020-10-26 20:37:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:58,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:59,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:59,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:59,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-26 20:37:59,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-26 20:37:59,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:37:59,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-26 20:37:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:59,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:59,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:59,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:59,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:59,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:59,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:59,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:59,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:59,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:59,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:59,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:59,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:59,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:59,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:59,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:59,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:59,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:59,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:59,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:59,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:59,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:37:59,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:37:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:37:59,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113839721] [2020-10-26 20:37:59,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:59,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:59,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083311790] [2020-10-26 20:37:59,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:37:59,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:59,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:37:59,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:59,559 INFO L87 Difference]: Start difference. First operand 1146 states and 1562 transitions. Second operand 5 states. [2020-10-26 20:38:01,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:01,167 INFO L93 Difference]: Finished difference Result 2906 states and 4078 transitions. [2020-10-26 20:38:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:38:01,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-26 20:38:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:01,185 INFO L225 Difference]: With dead ends: 2906 [2020-10-26 20:38:01,186 INFO L226 Difference]: Without dead ends: 1766 [2020-10-26 20:38:01,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:38:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2020-10-26 20:38:01,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1745. [2020-10-26 20:38:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1745 states. [2020-10-26 20:38:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2399 transitions. [2020-10-26 20:38:01,275 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2399 transitions. Word has length 168 [2020-10-26 20:38:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:01,276 INFO L481 AbstractCegarLoop]: Abstraction has 1745 states and 2399 transitions. [2020-10-26 20:38:01,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:38:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2399 transitions. [2020-10-26 20:38:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-26 20:38:01,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:01,285 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:01,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:38:01,285 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:01,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:01,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1495819424, now seen corresponding path program 1 times [2020-10-26 20:38:01,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:01,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677257994] [2020-10-26 20:38:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:01,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:01,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:01,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:02,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-26 20:38:02,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:02,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1063 [2020-10-26 20:38:02,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:38:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:38:02,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:02,561 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:38:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:02,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:02,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:02,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:02,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:02,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:38:02,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:02,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:02,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:02,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:02,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:02,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:38:02,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:38:02,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:38:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:38:02,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:38:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:02,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:02,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:02,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:38:02,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:02,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 20:38:02,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:38:02,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:38:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:38:02,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677257994] [2020-10-26 20:38:02,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:02,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:02,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486751524] [2020-10-26 20:38:02,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:02,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:02,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:02,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:02,787 INFO L87 Difference]: Start difference. First operand 1745 states and 2399 transitions. Second operand 7 states. [2020-10-26 20:38:04,110 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:38:04,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:04,930 INFO L93 Difference]: Finished difference Result 4124 states and 5727 transitions. [2020-10-26 20:38:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:38:04,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-26 20:38:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:04,944 INFO L225 Difference]: With dead ends: 4124 [2020-10-26 20:38:04,944 INFO L226 Difference]: Without dead ends: 1773 [2020-10-26 20:38:04,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2020-10-26 20:38:05,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1746. [2020-10-26 20:38:05,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1746 states. [2020-10-26 20:38:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2180 transitions. [2020-10-26 20:38:05,026 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2180 transitions. Word has length 177 [2020-10-26 20:38:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:05,027 INFO L481 AbstractCegarLoop]: Abstraction has 1746 states and 2180 transitions. [2020-10-26 20:38:05,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2180 transitions. [2020-10-26 20:38:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-26 20:38:05,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:05,035 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:05,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:38:05,035 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:05,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:05,036 INFO L82 PathProgramCache]: Analyzing trace with hash -177279528, now seen corresponding path program 1 times [2020-10-26 20:38:05,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:05,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930210899] [2020-10-26 20:38:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:05,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:06,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:06,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-26 20:38:06,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1251 [2020-10-26 20:38:06,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:38:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:38:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:06,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:06,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:06,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:06,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:06,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:38:06,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:06,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:06,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:06,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:06,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:38:06,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:38:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:06,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:06,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:06,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:06,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:38:06,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:38:06,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:38:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:38:06,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930210899] [2020-10-26 20:38:06,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:06,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:06,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997461252] [2020-10-26 20:38:06,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:06,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:06,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:06,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:06,678 INFO L87 Difference]: Start difference. First operand 1746 states and 2180 transitions. Second operand 7 states. [2020-10-26 20:38:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:08,569 INFO L93 Difference]: Finished difference Result 3512 states and 4473 transitions. [2020-10-26 20:38:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:38:08,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-26 20:38:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:08,581 INFO L225 Difference]: With dead ends: 3512 [2020-10-26 20:38:08,581 INFO L226 Difference]: Without dead ends: 1772 [2020-10-26 20:38:08,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2020-10-26 20:38:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1741. [2020-10-26 20:38:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1741 states. [2020-10-26 20:38:08,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2067 transitions. [2020-10-26 20:38:08,650 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2067 transitions. Word has length 181 [2020-10-26 20:38:08,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:08,650 INFO L481 AbstractCegarLoop]: Abstraction has 1741 states and 2067 transitions. [2020-10-26 20:38:08,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:08,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2067 transitions. [2020-10-26 20:38:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-26 20:38:08,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:08,658 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:08,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:38:08,658 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:08,659 INFO L82 PathProgramCache]: Analyzing trace with hash -847471867, now seen corresponding path program 1 times [2020-10-26 20:38:08,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:08,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560691381] [2020-10-26 20:38:08,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:08,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:09,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:10,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-26 20:38:10,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:10,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-10-26 20:38:10,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:10,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:38:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:38:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:10,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:10,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:38:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:10,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:10,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:10,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:10,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:10,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:38:10,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:10,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:10,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:10,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:38:10,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:10,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:38:10,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:38:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:38:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:10,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:38:10,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-26 20:38:10,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:38:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 20:38:10,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560691381] [2020-10-26 20:38:10,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:10,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:10,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803526685] [2020-10-26 20:38:10,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:10,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:10,405 INFO L87 Difference]: Start difference. First operand 1741 states and 2067 transitions. Second operand 7 states. [2020-10-26 20:38:12,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:12,298 INFO L93 Difference]: Finished difference Result 3322 states and 3948 transitions. [2020-10-26 20:38:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:38:12,301 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-26 20:38:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:12,309 INFO L225 Difference]: With dead ends: 3322 [2020-10-26 20:38:12,309 INFO L226 Difference]: Without dead ends: 1441 [2020-10-26 20:38:12,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:12,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2020-10-26 20:38:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1287. [2020-10-26 20:38:12,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1287 states. [2020-10-26 20:38:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1482 transitions. [2020-10-26 20:38:12,359 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1482 transitions. Word has length 217 [2020-10-26 20:38:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:12,360 INFO L481 AbstractCegarLoop]: Abstraction has 1287 states and 1482 transitions. [2020-10-26 20:38:12,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1482 transitions. [2020-10-26 20:38:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 20:38:12,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:12,366 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:12,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:38:12,367 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:12,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:12,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1426460644, now seen corresponding path program 1 times [2020-10-26 20:38:12,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:12,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718067024] [2020-10-26 20:38:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:12,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:12,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:13,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:13,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:13,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:17,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-26 20:38:17,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 20:38:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-26 20:38:17,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:38:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:38:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-26 20:38:17,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:17,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:17,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:17,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:17,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:38:17,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:38:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:17,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:17,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:17,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:17,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:17,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:38:17,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:38:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:17,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:17,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-26 20:38:17,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:38:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-26 20:38:17,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:17,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 20:38:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:17,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 20:38:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:17,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:17,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:17,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:38:17,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:17,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:38:17,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-26 20:38:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:17,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 79 proven. 37 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:38:17,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718067024] [2020-10-26 20:38:17,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:17,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:38:17,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186097811] [2020-10-26 20:38:17,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:38:17,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:17,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:38:17,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:38:17,866 INFO L87 Difference]: Start difference. First operand 1287 states and 1482 transitions. Second operand 8 states. [2020-10-26 20:38:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:19,629 INFO L93 Difference]: Finished difference Result 2991 states and 3456 transitions. [2020-10-26 20:38:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:38:19,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-26 20:38:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:19,641 INFO L225 Difference]: With dead ends: 2991 [2020-10-26 20:38:19,641 INFO L226 Difference]: Without dead ends: 2065 [2020-10-26 20:38:19,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:19,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2020-10-26 20:38:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2049. [2020-10-26 20:38:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2049 states. [2020-10-26 20:38:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2380 transitions. [2020-10-26 20:38:19,731 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2380 transitions. Word has length 218 [2020-10-26 20:38:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:19,731 INFO L481 AbstractCegarLoop]: Abstraction has 2049 states and 2380 transitions. [2020-10-26 20:38:19,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:38:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2380 transitions. [2020-10-26 20:38:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 20:38:19,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:19,739 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-26 20:38:19,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:38:19,740 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:19,740 INFO L82 PathProgramCache]: Analyzing trace with hash 528882813, now seen corresponding path program 1 times [2020-10-26 20:38:19,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:19,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849011380] [2020-10-26 20:38:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:19,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:19,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:20,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-26 20:38:20,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:20,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-10-26 20:38:20,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:38:20,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 20:38:20,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:20,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:20,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:20,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:20,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:20,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:38:20,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:20,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:38:20,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:38:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:20,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:38:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:20,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:20,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:38:20,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 20:38:20,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 20:38:20,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:38:21,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849011380] [2020-10-26 20:38:21,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:21,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:21,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349707138] [2020-10-26 20:38:21,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:21,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:21,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:21,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:21,127 INFO L87 Difference]: Start difference. First operand 2049 states and 2380 transitions. Second operand 7 states. [2020-10-26 20:38:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:22,879 INFO L93 Difference]: Finished difference Result 4094 states and 4798 transitions. [2020-10-26 20:38:22,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:38:22,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-26 20:38:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:22,894 INFO L225 Difference]: With dead ends: 4094 [2020-10-26 20:38:22,894 INFO L226 Difference]: Without dead ends: 2405 [2020-10-26 20:38:22,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:38:22,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2020-10-26 20:38:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2359. [2020-10-26 20:38:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2020-10-26 20:38:22,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 2716 transitions. [2020-10-26 20:38:22,982 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 2716 transitions. Word has length 218 [2020-10-26 20:38:22,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:22,982 INFO L481 AbstractCegarLoop]: Abstraction has 2359 states and 2716 transitions. [2020-10-26 20:38:22,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:22,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 2716 transitions. [2020-10-26 20:38:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-26 20:38:22,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:38:22,992 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:38:22,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:38:22,993 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:38:22,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:38:22,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1142697627, now seen corresponding path program 1 times [2020-10-26 20:38:22,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:38:22,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322925289] [2020-10-26 20:38:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:38:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:23,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:23,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:23,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:23,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:23,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-26 20:38:23,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:38:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-26 20:38:23,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:23,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-26 20:38:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:38:23,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:24,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:38:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:24,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:24,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:38:24,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:38:24,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:38:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:38:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:38:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:24,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:24,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:24,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:38:24,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:38:24,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:38:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:38:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:38:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:24,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-26 20:38:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:38:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:38:24,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:38:24,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:38:24,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:38:24,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:38:24,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:38:24,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:38:24,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:38:24,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:38:24,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:38:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:38:24,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322925289] [2020-10-26 20:38:24,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:38:24,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:38:24,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548690000] [2020-10-26 20:38:24,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:38:24,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:38:24,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:38:24,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:38:24,245 INFO L87 Difference]: Start difference. First operand 2359 states and 2716 transitions. Second operand 7 states. [2020-10-26 20:38:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:38:25,890 INFO L93 Difference]: Finished difference Result 4344 states and 4981 transitions. [2020-10-26 20:38:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:38:25,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-26 20:38:25,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:38:25,895 INFO L225 Difference]: With dead ends: 4344 [2020-10-26 20:38:25,895 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:38:25,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:38:25,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:38:25,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:38:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:38:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:38:25,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2020-10-26 20:38:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:38:25,905 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:38:25,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:38:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:38:25,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:38:25,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:38:25,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:38:26,708 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 180 [2020-10-26 20:38:27,211 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 207 [2020-10-26 20:38:27,524 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2020-10-26 20:38:27,687 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-26 20:38:29,052 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 204 DAG size of output: 75 [2020-10-26 20:38:29,945 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 58 [2020-10-26 20:38:31,059 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 200 DAG size of output: 58 [2020-10-26 20:38:31,064 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:38:31,065 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:38:31,065 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:38:31,065 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:38:31,066 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:38:31,066 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~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)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-26 20:38:31,066 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:38:31,066 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:38:31,067 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,068 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:38:31,069 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,070 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:38:31,071 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,072 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:38:31,073 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:38:31,074 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,075 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:38:31,076 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:38:31,077 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:38:31,078 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:38:31,079 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:38:31,080 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,081 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L270 CegarLoopResult]: At program point L552(line 552) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a25~0)| 0))) (.cse3 (not (= 10 |old(~a28~0)|))) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse7 (not (<= 1 |old(~a25~0)|))) (.cse6 (not (<= |old(~a25~0)| 1))) (.cse4 (not (= |old(~a19~0)| 1))) (.cse0 (not (= 8 |old(~a17~0)|))) (.cse2 (not (<= |old(~a28~0)| 9)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse3 .cse5 .cse1) (or .cse6 .cse3 .cse0 .cse7) (or .cse3 .cse4 .cse0) (or (not (= 0 |old(~a11~0)|)) .cse2 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse6 .cse5 .cse2 .cse7) (or (not (= |old(~a25~0)| 1)) .cse4 (not (= 11 |old(~a28~0)|)) .cse0) (or .cse6 .cse4 .cse0 .cse2))) [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L552-1(line 552) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:38:31,082 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,083 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:38:31,084 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse16 (not (<= |old(~a17~0)| 7))) (.cse4 (= ~a28~0 10)) (.cse5 (not (= 10 |old(~a28~0)|))) (.cse10 (not (<= |old(~a25~0)| 0))) (.cse17 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a25~0 |old(~a25~0)|)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse14 (not (<= |old(~a25~0)| 1))) (.cse6 (not (= |old(~a19~0)| 1))) (.cse7 (not (= 8 |old(~a17~0)|))) (.cse8 (= ~a28~0 |old(~a28~0)|)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse1 (= ~a19~0 1)) (.cse12 (<= 1 ~a25~0)) (.cse3 (= ~a17~0 8)) (.cse13 (<= ~a25~0 1)) (.cse11 (not (<= |old(~a28~0)| 9))) (.cse15 (not (<= 1 |old(~a25~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or (and .cse8 .cse0 .cse2 .cse3 .cse9) .cse7 .cse10 .cse11) (or (and .cse0 .cse12 .cse3 .cse13 .cse9 .cse4) .cse14 .cse5 .cse7 .cse15) (or .cse14 .cse16 .cse11 .cse15 (and .cse8 .cse17 .cse0 .cse12 .cse13 .cse9)) (or (and .cse17 .cse0 .cse2 .cse9 .cse4) .cse5 .cse16 .cse10) (or (and .cse17 .cse0 .cse1 .cse2 .cse4) .cse5 .cse6 .cse10) (or (not (= 0 |old(~a11~0)|)) .cse11 (and .cse8 (= ~a25~0 ~a11~0) .cse17 .cse2 .cse9) (not (= |old(~a11~0)| |old(~a25~0)|))) (or (not (= |old(~a25~0)| 1)) .cse6 (not (= 11 |old(~a28~0)|)) (and .cse0 .cse1 .cse3 (= ~a25~0 1) (= ~a28~0 11)) .cse7) (or .cse14 .cse6 .cse7 (and .cse8 .cse0 .cse1 .cse12 .cse3 .cse13) .cse11 .cse15))) [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,085 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:38:31,086 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,087 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:38:31,088 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:38:31,089 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:38:31,090 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:38:31,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:38:31,090 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (<= 7 ~a28~0) (<= 8 ~a17~0) (= ~a11~0 0) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-10-26 20:38:31,090 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:38:31,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:38:31,090 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 7)) (.cse1 (<= ~a28~0 9)) (.cse2 (<= ~a25~0 0)) (.cse7 (<= 1 ~a25~0)) (.cse6 (<= ~a25~0 1)) (.cse4 (= ~a28~0 10)) (.cse5 (= ~a19~0 1)) (.cse0 (= ~a17~0 8))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (and .cse3 .cse2 .cse4) (and .cse5 .cse0 .cse1 .cse6) (and .cse5 .cse0 .cse4) (and .cse7 .cse1 .cse6 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse2 .cse4) (and (<= ~a17~0 |old(~a17~0)|) (= ~a11~0 0) .cse1 (<= |old(~a25~0)| ~a25~0) .cse2) (and .cse7 .cse0 .cse6 .cse4) (not (= ~a21~0 1)) (and .cse5 .cse0 (= ~a25~0 1) (= ~a28~0 11)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-26 20:38:31,091 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (<= ~a28~0 7)) (not (<= 7 |old(~a28~0)|)) (not (= ~a21~0 1)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-26 20:38:31,091 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:38:31,091 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:38:31,091 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 7)) (.cse1 (<= ~a28~0 9)) (.cse2 (<= ~a25~0 0)) (.cse7 (<= 1 ~a25~0)) (.cse6 (<= ~a25~0 1)) (.cse4 (= ~a28~0 10)) (.cse5 (= ~a19~0 1)) (.cse0 (= ~a17~0 8))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (and .cse3 .cse2 .cse4) (and .cse5 .cse0 .cse1 .cse6) (and .cse5 .cse0 .cse4) (and .cse7 .cse1 .cse6 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse2 .cse4) (and (<= ~a17~0 |old(~a17~0)|) (= ~a11~0 0) .cse1 (<= |old(~a25~0)| ~a25~0) .cse2) (and .cse7 .cse0 .cse6 .cse4) (not (= ~a21~0 1)) (and .cse5 .cse0 (= ~a25~0 1) (= ~a28~0 11)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-26 20:38:31,091 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:38:31,091 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:38:31,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:38:31 BoogieIcfgContainer [2020-10-26 20:38:31,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:38:31,117 INFO L168 Benchmark]: Toolchain (without parser) took 62354.86 ms. Allocated memory was 155.2 MB in the beginning and 859.8 MB in the end (delta: 704.6 MB). Free memory was 133.8 MB in the beginning and 763.4 MB in the end (delta: -629.5 MB). Peak memory consumption was 520.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:31,118 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 155.2 MB. Free memory was 127.7 MB in the beginning and 127.6 MB in the end (delta: 74.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:38:31,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.99 ms. Allocated memory is still 155.2 MB. Free memory was 133.3 MB in the beginning and 128.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:31,119 INFO L168 Benchmark]: Boogie Preprocessor took 156.73 ms. Allocated memory is still 155.2 MB. Free memory was 128.7 MB in the beginning and 124.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:31,120 INFO L168 Benchmark]: RCFGBuilder took 1205.19 ms. Allocated memory is still 155.2 MB. Free memory was 124.0 MB in the beginning and 77.2 MB in the end (delta: 46.8 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:31,120 INFO L168 Benchmark]: TraceAbstraction took 60260.84 ms. Allocated memory was 155.2 MB in the beginning and 859.8 MB in the end (delta: 704.6 MB). Free memory was 76.7 MB in the beginning and 763.4 MB in the end (delta: -686.7 MB). Peak memory consumption was 464.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:38:31,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 155.2 MB. Free memory was 127.7 MB in the beginning and 127.6 MB in the end (delta: 74.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 721.99 ms. Allocated memory is still 155.2 MB. Free memory was 133.3 MB in the beginning and 128.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 156.73 ms. Allocated memory is still 155.2 MB. Free memory was 128.7 MB in the beginning and 124.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1205.19 ms. Allocated memory is still 155.2 MB. Free memory was 124.0 MB in the beginning and 77.2 MB in the end (delta: 46.8 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60260.84 ms. Allocated memory was 155.2 MB in the beginning and 859.8 MB in the end (delta: 704.6 MB). Free memory was 76.7 MB in the beginning and 763.4 MB in the end (delta: -686.7 MB). Peak memory consumption was 464.0 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: 608]: Loop Invariant Derived loop invariant: ((((((((((((((((a17 == 8 && a28 <= 9) && a25 <= 0) || !(\old(a19) == 1)) || !(8 == \old(a17))) || !(0 == \old(a25))) || !(7 <= \old(a28))) || ((a17 <= 7 && a25 <= 0) && a28 == 10)) || (((a19 == 1 && a17 == 8) && a28 <= 9) && a25 <= 1)) || ((a19 == 1 && a17 == 8) && a28 == 10)) || (((1 <= a25 && a28 <= 9) && a25 <= 1) && a17 <= 7)) || !(\old(a28) <= 7)) || ((a19 == 1 && a25 <= 0) && a28 == 10)) || ((((a17 <= \old(a17) && a11 == 0) && a28 <= 9) && \old(a25) <= a25) && a25 <= 0)) || (((1 <= a25 && a17 == 8) && a25 <= 1) && a28 == 10)) || !(a21 == 1)) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 11)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.9s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 25.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 390 SDtfs, 5907 SDslu, 641 SDs, 0 SdLazy, 10207 SolverSat, 1573 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2359occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 513 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 238 PreInvPairs, 276 NumberOfFragments, 856 HoareAnnotationTreeSize, 238 FomulaSimplifications, 75892 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 31017 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 2162 NumberOfCodeBlocks, 2162 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2150 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574325 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 645/705 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...