/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/recursive-simple/sum_20x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:25:58,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:25:58,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:25:58,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:25:58,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:25:58,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:25:58,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:25:58,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:25:58,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:25:58,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:25:58,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:25:58,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:25:58,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:25:58,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:25:58,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:25:58,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:25:58,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:25:58,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:25:58,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:25:58,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:25:58,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:25:58,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:25:58,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:25:58,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:25:58,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:25:58,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:25:58,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:25:58,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:25:58,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:25:58,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:25:58,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:25:58,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:25:58,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:25:58,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:25:58,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:25:58,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:25:58,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:25:58,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:25:58,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:25:58,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:25:58,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:25:58,263 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 [2020-10-28 17:25:58,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:25:58,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:25:58,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:25:58,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:25:58,295 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:25:58,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:25:58,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:25:58,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:25:58,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:25:58,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:25:58,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:25:58,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:25:58,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:25:58,297 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:25:58,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:25:58,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:25:58,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:25:58,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:25:58,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:25:58,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:25:58,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:25:58,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:25:58,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:25:58,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:25:58,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:25:58,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:25:58,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:25:58,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:25:58,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:25:58,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:25:58,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:25:58,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:25:58,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:25:58,741 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:25:58,742 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:25:58,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-10-28 17:25:58,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6474cdb62/3ee4bee3cd5e4fb49f58acc148ec087d/FLAGfa0584867 [2020-10-28 17:25:59,488 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:25:59,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-10-28 17:25:59,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6474cdb62/3ee4bee3cd5e4fb49f58acc148ec087d/FLAGfa0584867 [2020-10-28 17:25:59,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6474cdb62/3ee4bee3cd5e4fb49f58acc148ec087d [2020-10-28 17:25:59,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:25:59,857 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:25:59,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:25:59,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:25:59,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:25:59,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:25:59" (1/1) ... [2020-10-28 17:25:59,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdd0aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:59, skipping insertion in model container [2020-10-28 17:25:59,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:25:59" (1/1) ... [2020-10-28 17:25:59,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:25:59,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:26:00,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:26:00,055 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:26:00,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:26:00,090 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:26:00,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00 WrapperNode [2020-10-28 17:26:00,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:26:00,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:26:00,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:26:00,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:26:00,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (1/1) ... [2020-10-28 17:26:00,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:26:00,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:26:00,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:26:00,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:26:00,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (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 [2020-10-28 17:26:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:26:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:26:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:26:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-28 17:26:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:26:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:26:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:26:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:26:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:26:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-28 17:26:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:26:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:26:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:26:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:26:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:26:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:26:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:26:00,667 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:26:00,668 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 17:26:00,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:26:00 BoogieIcfgContainer [2020-10-28 17:26:00,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:26:00,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:26:00,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:26:00,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:26:00,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:25:59" (1/3) ... [2020-10-28 17:26:00,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35db01fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:26:00, skipping insertion in model container [2020-10-28 17:26:00,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:26:00" (2/3) ... [2020-10-28 17:26:00,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35db01fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:26:00, skipping insertion in model container [2020-10-28 17:26:00,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:26:00" (3/3) ... [2020-10-28 17:26:00,685 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_20x0-1.c [2020-10-28 17:26:00,699 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:26:00,704 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:26:00,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:26:00,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:26:00,768 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:26:00,768 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:26:00,768 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:26:00,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:26:00,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:26:00,769 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:26:00,769 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:26:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-28 17:26:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-28 17:26:00,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:00,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:00,805 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:00,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2012080153, now seen corresponding path program 1 times [2020-10-28 17:26:00,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:00,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162933975] [2020-10-28 17:26:00,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:01,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:01,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:01,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:01,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-28 17:26:01,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:01,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:01,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:26:01,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:01,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:26:01,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:26:01,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:01,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:01,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:01,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:01,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:01,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:26:01,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:01,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:01,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:01,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:01,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:01,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:01,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:01,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:01,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:01,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 17:26:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:01,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:26:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:26:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:26:01,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162933975] [2020-10-28 17:26:01,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:26:01,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:26:01,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645427943] [2020-10-28 17:26:01,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:26:01,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:01,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:26:01,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:26:01,657 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-28 17:26:01,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:01,904 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-28 17:26:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:26:01,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-28 17:26:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:01,917 INFO L225 Difference]: With dead ends: 36 [2020-10-28 17:26:01,917 INFO L226 Difference]: Without dead ends: 20 [2020-10-28 17:26:01,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:26:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-28 17:26:01,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-28 17:26:01,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-28 17:26:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-28 17:26:01,974 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-28 17:26:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:01,974 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-28 17:26:01,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:26:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-28 17:26:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 17:26:01,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:01,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:01,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:26:01,978 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:01,979 INFO L82 PathProgramCache]: Analyzing trace with hash -292229313, now seen corresponding path program 1 times [2020-10-28 17:26:01,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:01,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119690815] [2020-10-28 17:26:01,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:02,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-28 17:26:02,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:26:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:26:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:02,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:02,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:02,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:02,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:02,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 17:26:02,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:26:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:26:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:02,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:02,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:02,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:02,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:26:02,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119690815] [2020-10-28 17:26:02,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:02,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 17:26:02,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981015941] [2020-10-28 17:26:02,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:26:02,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:02,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:26:02,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:26:02,501 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2020-10-28 17:26:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:02,719 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-28 17:26:02,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:26:02,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-28 17:26:02,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:02,721 INFO L225 Difference]: With dead ends: 28 [2020-10-28 17:26:02,721 INFO L226 Difference]: Without dead ends: 23 [2020-10-28 17:26:02,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:26:02,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-28 17:26:02,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-28 17:26:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-28 17:26:02,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-28 17:26:02,731 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-28 17:26:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:02,731 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-28 17:26:02,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:26:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-28 17:26:02,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 17:26:02,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:02,733 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:02,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:26:02,734 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:02,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1887732007, now seen corresponding path program 2 times [2020-10-28 17:26:02,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:02,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282225444] [2020-10-28 17:26:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:02,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-28 17:26:02,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:26:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 17:26:02,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:02,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:02,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 17:26:02,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:02,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:02,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:02,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:03,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 17:26:03,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:26:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 17:26:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:03,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:26:03,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:03,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:03,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:26:03,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:03,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 17:26:03,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282225444] [2020-10-28 17:26:03,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:03,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 17:26:03,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81729191] [2020-10-28 17:26:03,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:26:03,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:03,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:26:03,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:26:03,228 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2020-10-28 17:26:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:03,465 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-28 17:26:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:26:03,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-28 17:26:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:03,467 INFO L225 Difference]: With dead ends: 31 [2020-10-28 17:26:03,467 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 17:26:03,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:26:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 17:26:03,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-28 17:26:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-28 17:26:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-28 17:26:03,476 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-28 17:26:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:03,477 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-28 17:26:03,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:26:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-28 17:26:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-28 17:26:03,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:03,478 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:03,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:26:03,479 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:03,479 INFO L82 PathProgramCache]: Analyzing trace with hash 779050623, now seen corresponding path program 3 times [2020-10-28 17:26:03,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:03,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804106327] [2020-10-28 17:26:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:03,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-28 17:26:03,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:26:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:03,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:03,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:03,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:03,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 17:26:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:26:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:03,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 17:26:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:03,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 17:26:03,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:04,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:26:04,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:04,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:04,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:04,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:26:04,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-28 17:26:04,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804106327] [2020-10-28 17:26:04,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:04,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:26:04,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534037562] [2020-10-28 17:26:04,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:26:04,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:04,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:26:04,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:26:04,069 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-10-28 17:26:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:04,408 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-28 17:26:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 17:26:04,408 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-28 17:26:04,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:04,410 INFO L225 Difference]: With dead ends: 34 [2020-10-28 17:26:04,410 INFO L226 Difference]: Without dead ends: 29 [2020-10-28 17:26:04,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:26:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-28 17:26:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-28 17:26:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-28 17:26:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-28 17:26:04,418 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-28 17:26:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:04,419 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-28 17:26:04,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:26:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-28 17:26:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 17:26:04,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:04,420 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:04,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:26:04,421 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash -184104345, now seen corresponding path program 4 times [2020-10-28 17:26:04,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:04,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232188780] [2020-10-28 17:26:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:04,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-28 17:26:04,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:26:04,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:04,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:26:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:26:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:04,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 17:26:04,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:26:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:26:04,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:04,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 17:26:04,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:05,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:05,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 17:26:05,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:05,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:05,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:05,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:05,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:26:05,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:05,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:05,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:05,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:05,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:05,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:05,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:05,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:05,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:05,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:05,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:05,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-28 17:26:05,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232188780] [2020-10-28 17:26:05,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:05,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:26:05,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19932271] [2020-10-28 17:26:05,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:26:05,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:05,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:26:05,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:26:05,146 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 11 states. [2020-10-28 17:26:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:05,511 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-28 17:26:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:26:05,512 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-10-28 17:26:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:05,513 INFO L225 Difference]: With dead ends: 37 [2020-10-28 17:26:05,513 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 17:26:05,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:26:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 17:26:05,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-28 17:26:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 17:26:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-28 17:26:05,522 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-28 17:26:05,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:05,522 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-28 17:26:05,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:26:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-28 17:26:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-28 17:26:05,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:05,524 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:05,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:26:05,525 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:05,525 INFO L82 PathProgramCache]: Analyzing trace with hash -6214209, now seen corresponding path program 5 times [2020-10-28 17:26:05,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:05,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131632166] [2020-10-28 17:26:05,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:05,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:05,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:05,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:05,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-28 17:26:05,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:05,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:26:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:05,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:05,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:05,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:05,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:05,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:05,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:26:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:05,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:05,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:05,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:05,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:05,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:05,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 17:26:06,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:26:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 17:26:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-28 17:26:06,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:06,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:06,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 17:26:06,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 17:26:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:06,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:06,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:06,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 17:26:06,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:06,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:06,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:06,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:06,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:06,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 2 proven. 52 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-28 17:26:06,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131632166] [2020-10-28 17:26:06,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:06,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 17:26:06,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082825011] [2020-10-28 17:26:06,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:26:06,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:06,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:26:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:26:06,622 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 12 states. [2020-10-28 17:26:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:07,047 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-28 17:26:07,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 17:26:07,047 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-28 17:26:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:07,049 INFO L225 Difference]: With dead ends: 40 [2020-10-28 17:26:07,049 INFO L226 Difference]: Without dead ends: 35 [2020-10-28 17:26:07,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:26:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-28 17:26:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-28 17:26:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-28 17:26:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-28 17:26:07,057 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-28 17:26:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:07,058 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-28 17:26:07,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:26:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-28 17:26:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 17:26:07,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:07,060 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:07,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:26:07,060 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:07,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:07,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2097613913, now seen corresponding path program 6 times [2020-10-28 17:26:07,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:07,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782182748] [2020-10-28 17:26:07,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:07,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-28 17:26:07,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:26:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 17:26:07,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:07,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:07,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:07,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:07,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:07,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:07,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-28 17:26:07,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:26:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:26:07,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:07,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:07,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 17:26:07,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:07,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:08,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 17:26:08,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:08,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:08,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:08,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 17:26:08,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:08,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:08,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:08,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:26:08,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:08,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 17:26:08,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:08,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:26:08,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:08,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 73 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-28 17:26:08,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782182748] [2020-10-28 17:26:08,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:08,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 17:26:08,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354075880] [2020-10-28 17:26:08,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:26:08,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:08,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:26:08,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:26:08,343 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 13 states. [2020-10-28 17:26:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:08,861 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-28 17:26:08,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 17:26:08,862 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-28 17:26:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:08,865 INFO L225 Difference]: With dead ends: 43 [2020-10-28 17:26:08,865 INFO L226 Difference]: Without dead ends: 38 [2020-10-28 17:26:08,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:26:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-28 17:26:08,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-28 17:26:08,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-28 17:26:08,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-28 17:26:08,878 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-28 17:26:08,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:08,878 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-28 17:26:08,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:26:08,879 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-28 17:26:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 17:26:08,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:08,884 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:08,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:26:08,884 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:08,885 INFO L82 PathProgramCache]: Analyzing trace with hash -437625601, now seen corresponding path program 7 times [2020-10-28 17:26:08,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:08,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964024417] [2020-10-28 17:26:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:09,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:09,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:09,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-28 17:26:09,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:09,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-28 17:26:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 17:26:09,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:09,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:09,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:09,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:09,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:09,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:09,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:26:09,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:09,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:09,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:09,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:09,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:09,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:09,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:09,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-28 17:26:09,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:09,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-28 17:26:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 17:26:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:09,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:09,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:09,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:09,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-28 17:26:09,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:09,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:09,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:09,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:10,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-28 17:26:10,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:10,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:10,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:10,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-28 17:26:10,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:10,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:10,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:10,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 17:26:10,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:10,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:10,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 17:26:10,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:10,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:10,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:10,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:26:10,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:10,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:10,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:10,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:10,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 23 proven. 81 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-28 17:26:10,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964024417] [2020-10-28 17:26:10,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:10,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 17:26:10,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204467641] [2020-10-28 17:26:10,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:26:10,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:10,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:26:10,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:26:10,427 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 14 states. [2020-10-28 17:26:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:10,984 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-28 17:26:10,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 17:26:10,987 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-28 17:26:10,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:10,988 INFO L225 Difference]: With dead ends: 46 [2020-10-28 17:26:10,988 INFO L226 Difference]: Without dead ends: 41 [2020-10-28 17:26:10,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:26:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-28 17:26:10,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-28 17:26:10,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-28 17:26:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-28 17:26:10,996 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-28 17:26:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:10,997 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-28 17:26:10,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:26:10,997 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-28 17:26:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 17:26:10,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:10,998 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:10,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:26:10,999 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:10,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:10,999 INFO L82 PathProgramCache]: Analyzing trace with hash 331021543, now seen corresponding path program 8 times [2020-10-28 17:26:10,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:11,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193168997] [2020-10-28 17:26:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:11,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:11,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:11,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:11,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-28 17:26:11,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:11,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:11,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:26:11,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:11,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 17:26:11,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:11,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:11,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:11,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:11,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:11,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:11,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:11,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:11,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:11,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:11,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-28 17:26:11,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:11,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:26:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 17:26:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:11,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:12,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-28 17:26:12,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:12,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:12,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:12,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:12,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 17:26:12,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:12,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 17:26:12,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:12,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 17:26:12,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:13,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:26:13,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:13,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:13,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:13,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:13,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 125 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-28 17:26:13,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193168997] [2020-10-28 17:26:13,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:13,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 17:26:13,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317833587] [2020-10-28 17:26:13,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:26:13,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:13,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:26:13,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:26:13,098 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 16 states. [2020-10-28 17:26:13,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:13,677 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-28 17:26:13,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:26:13,678 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 63 [2020-10-28 17:26:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:13,683 INFO L225 Difference]: With dead ends: 49 [2020-10-28 17:26:13,683 INFO L226 Difference]: Without dead ends: 44 [2020-10-28 17:26:13,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:26:13,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-28 17:26:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-28 17:26:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-28 17:26:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-28 17:26:13,692 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-28 17:26:13,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:13,692 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-28 17:26:13,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:26:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-28 17:26:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 17:26:13,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:13,693 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:13,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:26:13,694 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:13,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1458901953, now seen corresponding path program 9 times [2020-10-28 17:26:13,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:13,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38875333] [2020-10-28 17:26:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:14,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:14,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 17:26:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:14,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:14,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:14,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:14,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:14,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:14,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:14,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:14,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:14,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:14,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:14,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:14,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:14,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-28 17:26:14,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:14,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:26:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 17:26:14,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:14,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:14,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:15,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-28 17:26:15,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:15,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:15,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-28 17:26:15,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:15,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:15,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:15,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:15,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-28 17:26:15,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:15,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 17:26:15,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:15,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:15,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:15,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 17:26:15,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:16,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:16,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:16,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:16,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:16,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 17:26:16,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:16,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:16,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:16,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:16,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:16,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:16,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 17:26:16,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:16,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:16,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:16,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:16,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:16,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:16,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:26:16,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:16,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:16,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:16,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:16,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:26:16,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:16,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 28 proven. 142 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-28 17:26:16,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38875333] [2020-10-28 17:26:16,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:16,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 17:26:16,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616928315] [2020-10-28 17:26:16,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:26:16,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:16,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:26:16,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:26:16,290 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 16 states. [2020-10-28 17:26:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:16,997 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-28 17:26:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:26:16,998 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 69 [2020-10-28 17:26:16,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:17,001 INFO L225 Difference]: With dead ends: 52 [2020-10-28 17:26:17,002 INFO L226 Difference]: Without dead ends: 47 [2020-10-28 17:26:17,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2020-10-28 17:26:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-28 17:26:17,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-28 17:26:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 17:26:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-28 17:26:17,016 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-28 17:26:17,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:17,016 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-28 17:26:17,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:26:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-28 17:26:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 17:26:17,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:17,022 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:17,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:26:17,022 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:17,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 749528615, now seen corresponding path program 10 times [2020-10-28 17:26:17,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:17,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004145287] [2020-10-28 17:26:17,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:17,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:26:17,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 17:26:17,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:17,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:17,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:17,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:17,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:17,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:17,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:17,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:17,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:17,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:17,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:17,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:18,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-28 17:26:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:26:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 17:26:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:18,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-28 17:26:18,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:18,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-28 17:26:18,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:18,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:19,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-28 17:26:19,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:19,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 17:26:19,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:19,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:19,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:19,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-28 17:26:19,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:19,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:19,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 17:26:19,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:19,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:19,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 17:26:19,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:19,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:19,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:19,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:26:19,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:19,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:19,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:26:19,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:19,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:19,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:26:19,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:19,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 18 proven. 189 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-28 17:26:19,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004145287] [2020-10-28 17:26:19,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:19,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-28 17:26:19,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253333883] [2020-10-28 17:26:19,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 17:26:19,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:19,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 17:26:19,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:26:19,860 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 17 states. [2020-10-28 17:26:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:20,585 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-28 17:26:20,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:26:20,586 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 75 [2020-10-28 17:26:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:20,587 INFO L225 Difference]: With dead ends: 55 [2020-10-28 17:26:20,587 INFO L226 Difference]: Without dead ends: 50 [2020-10-28 17:26:20,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2020-10-28 17:26:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-28 17:26:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-28 17:26:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-28 17:26:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-28 17:26:20,596 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-28 17:26:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:20,597 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-28 17:26:20,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-28 17:26:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-28 17:26:20,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 17:26:20,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:20,598 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:20,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:26:20,599 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:20,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1422056319, now seen corresponding path program 11 times [2020-10-28 17:26:20,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:20,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43049159] [2020-10-28 17:26:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:20,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:21,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:21,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-28 17:26:21,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:21,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-28 17:26:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:21,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:21,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:21,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:21,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:21,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:21,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:21,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:21,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:21,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:21,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:21,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:21,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:21,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:21,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:21,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-28 17:26:21,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:21,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-28 17:26:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-28 17:26:21,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:21,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:22,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:22,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:22,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:22,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-28 17:26:22,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:22,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:22,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:22,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:22,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:22,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:22,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-28 17:26:22,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:22,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:22,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:22,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:22,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:22,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:22,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-28 17:26:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:22,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:22,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:23,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-28 17:26:23,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:23,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:23,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 17:26:23,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:23,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 17:26:23,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:23,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:26:23,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:23,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:23,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:23,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 17:26:23,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:23,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 17:26:23,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:23,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:23,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:26:23,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:23,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:23,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:26:23,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:23,846 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 14 proven. 246 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-28 17:26:23,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43049159] [2020-10-28 17:26:23,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:23,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-28 17:26:23,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862346441] [2020-10-28 17:26:23,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:26:23,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:23,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:26:23,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:26:23,849 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 19 states. [2020-10-28 17:26:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:24,668 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-28 17:26:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:26:24,669 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 81 [2020-10-28 17:26:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:24,671 INFO L225 Difference]: With dead ends: 58 [2020-10-28 17:26:24,671 INFO L226 Difference]: Without dead ends: 53 [2020-10-28 17:26:24,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=341, Invalid=715, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 17:26:24,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-28 17:26:24,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-28 17:26:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-28 17:26:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-28 17:26:24,680 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-28 17:26:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:24,681 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-28 17:26:24,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 17:26:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-28 17:26:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-28 17:26:24,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:24,682 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:24,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:26:24,683 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:24,683 INFO L82 PathProgramCache]: Analyzing trace with hash -550588569, now seen corresponding path program 12 times [2020-10-28 17:26:24,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:24,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727446916] [2020-10-28 17:26:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:24,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:25,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:25,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:25,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:25,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 725 [2020-10-28 17:26:25,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:25,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:25,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:26:25,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:25,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-28 17:26:25,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:25,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:25,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:26:25,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:25,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:25,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:25,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:25,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:25,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 17:26:25,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:26,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:26,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:26,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:26,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:26,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:26,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-28 17:26:26,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:26,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:26:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:26,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:26,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:26,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:26,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:27,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-28 17:26:27,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:27,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:27,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-28 17:26:27,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:27,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 17:26:27,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:27,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:27,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 17:26:27,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:27,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:27,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 17:26:27,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:27,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:28,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:28,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:28,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 17:26:28,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:28,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:28,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:28,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:28,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:28,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:28,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 17:26:28,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:28,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:28,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:28,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:28,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:28,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:28,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:26:28,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:28,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:28,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:28,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:28,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:28,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:28,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:26:28,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:28,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:28,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 27 proven. 258 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-28 17:26:28,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727446916] [2020-10-28 17:26:28,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:28,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-28 17:26:28,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825484128] [2020-10-28 17:26:28,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:26:28,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:28,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:26:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:26:28,256 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 19 states. [2020-10-28 17:26:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:29,122 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-28 17:26:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:26:29,122 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 87 [2020-10-28 17:26:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:29,124 INFO L225 Difference]: With dead ends: 61 [2020-10-28 17:26:29,124 INFO L226 Difference]: Without dead ends: 56 [2020-10-28 17:26:29,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=370, Invalid=752, Unknown=0, NotChecked=0, Total=1122 [2020-10-28 17:26:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-28 17:26:29,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-28 17:26:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-28 17:26:29,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-28 17:26:29,142 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-28 17:26:29,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:29,143 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-28 17:26:29,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 17:26:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-28 17:26:29,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 17:26:29,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:29,144 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:29,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:26:29,145 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:29,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:29,145 INFO L82 PathProgramCache]: Analyzing trace with hash 953297599, now seen corresponding path program 13 times [2020-10-28 17:26:29,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:29,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881514122] [2020-10-28 17:26:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:29,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-28 17:26:29,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-28 17:26:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:29,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:29,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:29,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:30,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:30,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:30,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:30,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-28 17:26:30,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:30,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-28 17:26:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 17:26:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:30,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:31,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-28 17:26:31,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:31,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:31,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:26:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:31,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:31,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:31,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:31,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:31,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-28 17:26:31,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:31,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:26:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:31,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:31,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:31,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:31,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:31,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:31,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:31,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 17:26:31,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:31,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:31,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:31,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:31,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:31,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:31,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:31,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 17:26:31,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:31,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:31,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:31,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:31,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:31,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:32,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:32,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:32,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:32,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 17:26:32,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:32,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:32,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:32,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 17:26:32,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:32,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:32,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 17:26:32,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:32,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:26:32,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:32,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 17:26:32,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:32,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:32,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:32,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:32,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:26:32,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:32,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:32,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:32,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:26:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:32,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:32,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:26:32,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:32,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 39 proven. 302 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-10-28 17:26:33,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881514122] [2020-10-28 17:26:33,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:33,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-28 17:26:33,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256062359] [2020-10-28 17:26:33,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-28 17:26:33,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:33,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-28 17:26:33,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:26:33,012 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 20 states. [2020-10-28 17:26:33,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:33,913 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-28 17:26:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 17:26:33,914 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 93 [2020-10-28 17:26:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:33,915 INFO L225 Difference]: With dead ends: 64 [2020-10-28 17:26:33,915 INFO L226 Difference]: Without dead ends: 59 [2020-10-28 17:26:33,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=418, Invalid=842, Unknown=0, NotChecked=0, Total=1260 [2020-10-28 17:26:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-28 17:26:33,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-28 17:26:33,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-28 17:26:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-28 17:26:33,925 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-28 17:26:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:33,926 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-28 17:26:33,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-28 17:26:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-28 17:26:33,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-28 17:26:33,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:33,927 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:33,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 17:26:33,928 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:33,928 INFO L82 PathProgramCache]: Analyzing trace with hash -929015641, now seen corresponding path program 14 times [2020-10-28 17:26:33,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:33,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029798426] [2020-10-28 17:26:33,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:33,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:34,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:26:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 17:26:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:34,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:34,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:34,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:34,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:34,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:34,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:34,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:34,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 17:26:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:26:35,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:26:35,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:26:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:36,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-28 17:26:36,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:36,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:37,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-28 17:26:37,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:37,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:37,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-28 17:26:37,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:37,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:37,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:37,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-28 17:26:37,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:37,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:37,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 17:26:37,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:37,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:37,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 17:26:37,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:38,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:38,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:38,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 17:26:38,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:38,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:38,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:38,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:38,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:38,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:38,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:26:38,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:38,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:38,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:38,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:38,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:38,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:38,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:38,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:38,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:38,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:26:38,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:38,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:38,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:38,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:38,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:38,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:38,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:38,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:38,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:38,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:38,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:38,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:26:38,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:38,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:38,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:38,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 18 proven. 333 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-28 17:26:38,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029798426] [2020-10-28 17:26:38,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:38,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-28 17:26:38,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618240267] [2020-10-28 17:26:38,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-28 17:26:38,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:38,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-28 17:26:38,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:26:38,264 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 21 states. [2020-10-28 17:26:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:39,252 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-28 17:26:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:26:39,253 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 99 [2020-10-28 17:26:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:39,254 INFO L225 Difference]: With dead ends: 67 [2020-10-28 17:26:39,254 INFO L226 Difference]: Without dead ends: 62 [2020-10-28 17:26:39,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=469, Invalid=937, Unknown=0, NotChecked=0, Total=1406 [2020-10-28 17:26:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-28 17:26:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-28 17:26:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-28 17:26:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-28 17:26:39,269 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-28 17:26:39,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:39,271 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-28 17:26:39,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-28 17:26:39,271 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-28 17:26:39,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:26:39,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:39,272 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:39,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 17:26:39,273 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:39,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:39,273 INFO L82 PathProgramCache]: Analyzing trace with hash -386344449, now seen corresponding path program 15 times [2020-10-28 17:26:39,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:39,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470859291] [2020-10-28 17:26:39,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:39,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:39,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:39,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-10-28 17:26:39,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:39,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-28 17:26:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 17:26:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:40,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:40,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:40,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:40,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:40,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:40,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:40,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:40,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:40,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-28 17:26:40,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:40,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-28 17:26:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 17:26:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:40,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:40,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:26:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:41,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:41,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:41,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:41,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:41,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-28 17:26:41,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:41,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:41,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:41,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:41,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:26:41,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:41,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:26:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:41,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:26:41,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:41,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:42,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:42,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 17:26:42,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:42,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 17:26:42,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:42,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:42,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:43,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:26:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:43,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:26:43,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:43,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:43,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:26:43,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:43,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:43,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 48 proven. 428 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2020-10-28 17:26:43,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470859291] [2020-10-28 17:26:43,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:43,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-28 17:26:43,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139600567] [2020-10-28 17:26:43,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 17:26:43,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 17:26:43,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:26:43,346 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 23 states. [2020-10-28 17:26:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:44,376 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-28 17:26:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-28 17:26:44,378 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 105 [2020-10-28 17:26:44,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:44,380 INFO L225 Difference]: With dead ends: 70 [2020-10-28 17:26:44,380 INFO L226 Difference]: Without dead ends: 65 [2020-10-28 17:26:44,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=543, Invalid=1097, Unknown=0, NotChecked=0, Total=1640 [2020-10-28 17:26:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-28 17:26:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-28 17:26:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-28 17:26:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-28 17:26:44,404 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-28 17:26:44,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:44,404 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-28 17:26:44,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 17:26:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-28 17:26:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 17:26:44,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:44,406 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:44,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 17:26:44,406 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:44,407 INFO L82 PathProgramCache]: Analyzing trace with hash 308404711, now seen corresponding path program 16 times [2020-10-28 17:26:44,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:44,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968069982] [2020-10-28 17:26:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:44,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:45,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:45,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:26:45,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:45,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-28 17:26:45,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:45,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:26:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 17:26:45,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:45,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:45,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 17:26:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:46,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:46,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:46,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:46,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-28 17:26:46,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:46,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:26:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:46,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-28 17:26:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:46,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:46,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:46,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:26:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:46,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:47,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:47,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:47,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:47,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-28 17:26:47,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:47,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:26:47,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:47,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:47,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:47,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:26:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:47,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:47,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:47,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:47,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:26:47,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:47,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:47,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:47,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:47,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:47,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:48,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-28 17:26:48,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:48,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:48,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:48,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 17:26:48,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:48,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:48,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 17:26:48,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:48,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:48,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:48,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:26:48,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:48,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:26:48,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:48,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:48,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:48,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:26:48,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:48,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:48,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 78 proven. 414 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2020-10-28 17:26:49,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968069982] [2020-10-28 17:26:49,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:49,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-28 17:26:49,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354997448] [2020-10-28 17:26:49,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 17:26:49,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:49,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 17:26:49,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=326, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:26:49,019 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 23 states. [2020-10-28 17:26:50,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:50,086 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-28 17:26:50,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:26:50,087 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 111 [2020-10-28 17:26:50,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:50,089 INFO L225 Difference]: With dead ends: 73 [2020-10-28 17:26:50,090 INFO L226 Difference]: Without dead ends: 68 [2020-10-28 17:26:50,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=580, Invalid=1142, Unknown=0, NotChecked=0, Total=1722 [2020-10-28 17:26:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-28 17:26:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-28 17:26:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-28 17:26:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-28 17:26:50,108 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-28 17:26:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:50,109 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-28 17:26:50,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 17:26:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-28 17:26:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 17:26:50,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:50,113 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:50,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 17:26:50,113 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:50,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:50,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1022814527, now seen corresponding path program 17 times [2020-10-28 17:26:50,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:50,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107902876] [2020-10-28 17:26:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:50,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 17:26:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:51,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 17:26:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:52,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518 [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 17:26:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:52,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:26:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-28 17:26:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:52,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:53,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:53,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:53,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:53,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-28 17:26:53,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:53,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:26:53,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:53,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:53,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:53,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:26:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:53,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:53,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:53,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:26:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:53,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:53,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:54,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:54,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:54,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-28 17:26:54,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:54,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:26:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:54,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:54,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:54,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:54,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:54,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:54,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-28 17:26:54,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:54,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:26:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:54,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:54,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:54,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:26:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:54,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:54,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:54,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:54,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:26:54,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:55,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 17:26:55,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:55,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:26:55,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:26:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:55,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:26:55,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:55,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:26:55,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:55,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:26:55,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:26:55,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:55,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:26:55,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:55,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:26:55,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:26:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:55,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:26:55,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:26:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 90 proven. 520 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-10-28 17:26:55,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107902876] [2020-10-28 17:26:55,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:55,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-28 17:26:55,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295825898] [2020-10-28 17:26:55,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 17:26:55,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 17:26:55,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:26:55,697 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-10-28 17:26:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:56,850 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-28 17:26:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 17:26:56,851 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 117 [2020-10-28 17:26:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:56,852 INFO L225 Difference]: With dead ends: 76 [2020-10-28 17:26:56,852 INFO L226 Difference]: Without dead ends: 71 [2020-10-28 17:26:56,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=662, Invalid=1318, Unknown=0, NotChecked=0, Total=1980 [2020-10-28 17:26:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-28 17:26:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-28 17:26:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-28 17:26:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-28 17:26:56,860 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-28 17:26:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:56,860 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-28 17:26:56,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 17:26:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-28 17:26:56,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 17:26:56,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:56,862 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:56,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 17:26:56,863 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:56,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:56,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1909672743, now seen corresponding path program 18 times [2020-10-28 17:26:56,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:56,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768030748] [2020-10-28 17:26:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:56,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:57,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:57,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:26:57,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:57,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-10-28 17:26:57,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:57,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:26:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:26:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 17:26:57,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:57,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:57,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:57,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:57,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:58,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-28 17:26:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:58,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:58,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 17:26:59,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:59,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-10-28 17:26:59,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:26:59,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 17:26:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-28 17:27:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:00,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:00,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:00,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:27:00,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:00,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:00,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:01,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:01,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:01,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-28 17:27:01,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:01,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:27:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:01,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:27:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:01,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:27:01,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:01,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:01,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:01,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:27:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:27:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:27:02,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:27:02,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:27:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:02,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:27:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:02,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 17:27:02,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:27:02,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:02,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:27:02,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:27:02,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:02,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:27:02,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:27:02,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:02,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:27:02,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:27:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:03,060 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 64 proven. 599 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2020-10-28 17:27:03,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768030748] [2020-10-28 17:27:03,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:03,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-28 17:27:03,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019400425] [2020-10-28 17:27:03,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 17:27:03,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:03,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 17:27:03,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=381, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:27:03,063 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 25 states. [2020-10-28 17:27:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:04,361 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-28 17:27:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-28 17:27:04,362 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2020-10-28 17:27:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:04,364 INFO L225 Difference]: With dead ends: 79 [2020-10-28 17:27:04,364 INFO L226 Difference]: Without dead ends: 74 [2020-10-28 17:27:04,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=703, Invalid=1367, Unknown=0, NotChecked=0, Total=2070 [2020-10-28 17:27:04,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-28 17:27:04,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-28 17:27:04,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-28 17:27:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-28 17:27:04,375 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-28 17:27:04,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:04,376 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-28 17:27:04,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 17:27:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-28 17:27:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-28 17:27:04,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:04,379 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:04,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 17:27:04,380 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:04,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1351374975, now seen corresponding path program 19 times [2020-10-28 17:27:04,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:04,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142595356] [2020-10-28 17:27:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:05,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:05,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:27:05,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 955 [2020-10-28 17:27:05,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:05,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-28 17:27:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:27:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:27:05,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:27:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:05,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:05,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:27:05,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:05,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:05,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:27:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:27:05,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:05,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:27:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:05,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:06,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:06,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:27:06,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:06,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-10-28 17:27:06,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:06,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-28 17:27:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:27:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-28 17:27:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:06,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:06,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:06,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:06,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-10-28 17:27:06,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:06,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:27:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-28 17:27:06,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:06,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:07,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 17:27:07,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:07,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:08,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:08,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:08,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:08,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-28 17:27:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:08,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 17:27:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:08,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-28 17:27:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:08,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:27:09,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:09,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-28 17:27:09,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:27:09,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:09,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 17:27:09,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 17:27:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 17:27:10,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:10,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-28 17:27:10,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:27:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:10,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 17:27:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:27:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:11,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 17:27:11,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:11,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:27:11,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:11,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 17:27:11,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:27:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:27:11,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:11,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 17:27:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:27:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:11,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:27:11,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 17:27:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:11,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:27:11,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:27:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:11,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:27:11,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:27:11,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:11,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:27:11,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:27:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 70 proven. 656 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-10-28 17:27:11,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142595356] [2020-10-28 17:27:11,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:11,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 17:27:11,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557014443] [2020-10-28 17:27:11,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 17:27:11,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:11,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 17:27:11,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:27:11,665 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 26 states. [2020-10-28 17:27:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:12,972 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-28 17:27:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 17:27:12,972 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 129 [2020-10-28 17:27:12,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:12,974 INFO L225 Difference]: With dead ends: 82 [2020-10-28 17:27:12,974 INFO L226 Difference]: Without dead ends: 77 [2020-10-28 17:27:12,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=769, Invalid=1487, Unknown=0, NotChecked=0, Total=2256 [2020-10-28 17:27:12,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-28 17:27:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-28 17:27:12,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-28 17:27:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-28 17:27:12,982 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-28 17:27:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:12,983 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-28 17:27:12,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 17:27:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-28 17:27:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-28 17:27:12,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:12,985 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:12,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 17:27:12,985 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:12,986 INFO L82 PathProgramCache]: Analyzing trace with hash 676631655, now seen corresponding path program 20 times [2020-10-28 17:27:12,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:12,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071643369] [2020-10-28 17:27:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 17:27:13,022 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 17:27:13,022 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 17:27:13,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 17:27:13,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 05:27:13 BoogieIcfgContainer [2020-10-28 17:27:13,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 17:27:13,056 INFO L168 Benchmark]: Toolchain (without parser) took 73203.17 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 126.5 MB in the beginning and 824.4 MB in the end (delta: -697.9 MB). Peak memory consumption was 93.7 MB. Max. memory is 8.0 GB. [2020-10-28 17:27:13,056 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 17:27:13,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 17:27:13,057 INFO L168 Benchmark]: Boogie Preprocessor took 34.31 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 17:27:13,058 INFO L168 Benchmark]: RCFGBuilder took 542.02 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 102.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-28 17:27:13,059 INFO L168 Benchmark]: TraceAbstraction took 72378.39 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 102.4 MB in the beginning and 824.4 MB in the end (delta: -722.0 MB). Peak memory consumption was 69.5 MB. Max. memory is 8.0 GB. [2020-10-28 17:27:13,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 233.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.31 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 542.02 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 102.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 72378.39 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 102.4 MB in the beginning and 824.4 MB in the end (delta: -722.0 MB). Peak memory consumption was 69.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int a = 20; [L15] int b = 0; [L16] CALL, EXPR sum(a, b) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND FALSE !(n <= 0) [L9] CALL, EXPR sum(n - 1, m + 1) [L6] COND TRUE n <= 0 [L7] return m + n; [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) [L9] return sum(n - 1, m + 1); [L16] RET, EXPR sum(a, b) [L16] int result = sum(a, b); [L17] COND TRUE result == a + b [L18] CALL reach_error() [L3] __assert_fail("0", "sum_20x0-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 72.2s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 263 SDtfs, 1357 SDslu, 587 SDs, 0 SdLazy, 1732 SolverSat, 768 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 980 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 542 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3292 ImplicationChecksByTransitivity, 14.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 56.5s InterpolantComputationTime, 1575 NumberOfCodeBlocks, 1575 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1420 ConstructedInterpolants, 0 QuantifiedInterpolants, 357502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3122/7600 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 incorrect! Received shutdown request...