/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=0.4 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:39:43,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:39:43,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:39:43,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:39:43,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:39:43,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:39:43,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:39:43,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:39:43,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:39:43,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:39:43,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:39:43,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:39:43,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:39:43,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:39:43,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:39:43,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:39:43,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:39:43,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:39:43,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:39:43,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:39:43,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:39:43,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:39:43,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:39:43,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:39:43,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:39:43,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:39:43,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:39:43,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:39:43,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:39:43,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:39:43,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:39:43,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:39:43,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:39:43,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:39:43,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:39:43,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:39:43,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:39:43,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:39:43,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:39:43,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:39:43,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:39:43,212 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 [2020-10-14 02:39:43,234 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:39:43,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:39:43,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:39:43,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:39:43,236 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:39:43,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:39:43,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:39:43,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:39:43,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:39:43,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:39:43,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:39:43,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:39:43,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:39:43,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:39:43,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:39:43,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:39:43,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:39:43,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:39:43,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:39:43,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:39:43,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:39:43,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:39:43,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:39:43,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:39:43,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:39:43,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:39:43,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:39:43,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:39:43,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:39:43,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 02:39:43,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:39:43,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:39:43,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:39:43,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:39:43,606 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:39:43,606 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label53.c [2020-10-14 02:39:43,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38408aa46/379fd0e55ad6456ab897789fe226ff92/FLAGd783e7a08 [2020-10-14 02:39:44,337 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:39:44,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label53.c [2020-10-14 02:39:44,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38408aa46/379fd0e55ad6456ab897789fe226ff92/FLAGd783e7a08 [2020-10-14 02:39:44,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38408aa46/379fd0e55ad6456ab897789fe226ff92 [2020-10-14 02:39:44,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:39:44,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:39:44,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:39:44,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:39:44,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:39:44,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:39:44" (1/1) ... [2020-10-14 02:39:44,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:44, skipping insertion in model container [2020-10-14 02:39:44,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:39:44" (1/1) ... [2020-10-14 02:39:44,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:39:44,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:39:45,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:39:45,522 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:39:45,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:39:45,774 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:39:45,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45 WrapperNode [2020-10-14 02:39:45,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:39:45,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:39:45,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:39:45,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:39:45,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (1/1) ... [2020-10-14 02:39:45,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:39:45,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:39:45,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:39:45,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:39:45,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (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 [2020-10-14 02:39:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:39:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:39:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:39:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:39:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:39:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:39:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:39:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:39:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:39:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:39:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:39:47,906 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:39:47,907 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:39:47,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:39:47 BoogieIcfgContainer [2020-10-14 02:39:47,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:39:47,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:39:47,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:39:47,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:39:47,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:39:44" (1/3) ... [2020-10-14 02:39:47,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5e4447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:39:47, skipping insertion in model container [2020-10-14 02:39:47,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:39:45" (2/3) ... [2020-10-14 02:39:47,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5e4447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:39:47, skipping insertion in model container [2020-10-14 02:39:47,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:39:47" (3/3) ... [2020-10-14 02:39:47,924 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label53.c [2020-10-14 02:39:47,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:39:47,943 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:39:47,957 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:39:47,989 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:39:47,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:39:47,989 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:39:47,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:39:47,990 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:39:47,990 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:39:47,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:39:47,993 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:39:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 02:39:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 02:39:48,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:48,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:39:48,033 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:48,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:48,041 INFO L82 PathProgramCache]: Analyzing trace with hash 640789778, now seen corresponding path program 1 times [2020-10-14 02:39:48,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:48,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79481801] [2020-10-14 02:39:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:48,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:48,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:48,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 02:39:48,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-14 02:39:48,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:48,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:39:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:39:48,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 02:39:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:39:48,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:39:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:48,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:48,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:39:48,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:48,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 02:39:48,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:48,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:39:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:48,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:39:48,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:39:48,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79481801] [2020-10-14 02:39:48,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:39:48,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 02:39:48,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420221340] [2020-10-14 02:39:48,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 02:39:48,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:39:48,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 02:39:48,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 02:39:48,965 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-10-14 02:39:51,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:39:51,461 INFO L93 Difference]: Finished difference Result 799 states and 1401 transitions. [2020-10-14 02:39:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:39:51,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 02:39:51,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:39:51,483 INFO L225 Difference]: With dead ends: 799 [2020-10-14 02:39:51,483 INFO L226 Difference]: Without dead ends: 443 [2020-10-14 02:39:51,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:39:51,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-14 02:39:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 429. [2020-10-14 02:39:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-10-14 02:39:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 645 transitions. [2020-10-14 02:39:51,579 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 645 transitions. Word has length 53 [2020-10-14 02:39:51,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:39:51,579 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 645 transitions. [2020-10-14 02:39:51,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 02:39:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 645 transitions. [2020-10-14 02:39:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 02:39:51,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:51,586 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:39:51,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:39:51,587 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:51,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:51,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1802247374, now seen corresponding path program 1 times [2020-10-14 02:39:51,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:51,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876459755] [2020-10-14 02:39:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:52,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:52,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:52,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 02:39:52,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:39:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-10-14 02:39:52,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:52,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:52,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:52,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 02:39:52,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 02:39:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:52,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:39:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:52,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:52,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:52,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:39:52,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:39:52,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:52,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:52,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:39:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:53,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:53,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 02:39:53,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:39:53,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:53,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:53,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:39:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 02:39:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:39:53,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876459755] [2020-10-14 02:39:53,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:39:53,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:39:53,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012770642] [2020-10-14 02:39:53,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:39:53,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:39:53,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:39:53,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:39:53,123 INFO L87 Difference]: Start difference. First operand 429 states and 645 transitions. Second operand 5 states. [2020-10-14 02:39:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:39:55,068 INFO L93 Difference]: Finished difference Result 1251 states and 1911 transitions. [2020-10-14 02:39:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:39:55,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-14 02:39:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:39:55,077 INFO L225 Difference]: With dead ends: 1251 [2020-10-14 02:39:55,078 INFO L226 Difference]: Without dead ends: 828 [2020-10-14 02:39:55,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:39:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-10-14 02:39:55,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 822. [2020-10-14 02:39:55,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-10-14 02:39:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1197 transitions. [2020-10-14 02:39:55,130 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1197 transitions. Word has length 123 [2020-10-14 02:39:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:39:55,131 INFO L479 AbstractCegarLoop]: Abstraction has 822 states and 1197 transitions. [2020-10-14 02:39:55,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:39:55,131 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1197 transitions. [2020-10-14 02:39:55,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 02:39:55,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:55,137 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:39:55,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:39:55,138 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:55,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1723743894, now seen corresponding path program 1 times [2020-10-14 02:39:55,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:55,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863013377] [2020-10-14 02:39:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:55,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:56,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:56,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 02:39:56,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:39:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1628 [2020-10-14 02:39:56,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:56,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:39:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 02:39:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:56,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:39:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:56,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:56,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:56,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:39:56,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:56,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:39:56,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:56,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:56,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:56,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:39:56,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:39:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:57,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:57,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:39:57,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 02:39:57,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:57,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:39:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:39:57,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:39:57,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863013377] [2020-10-14 02:39:57,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:39:57,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:39:57,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429819744] [2020-10-14 02:39:57,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:39:57,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:39:57,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:39:57,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:39:57,077 INFO L87 Difference]: Start difference. First operand 822 states and 1197 transitions. Second operand 5 states. [2020-10-14 02:39:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:39:58,855 INFO L93 Difference]: Finished difference Result 2034 states and 3034 transitions. [2020-10-14 02:39:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:39:58,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-14 02:39:58,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:39:58,873 INFO L225 Difference]: With dead ends: 2034 [2020-10-14 02:39:58,873 INFO L226 Difference]: Without dead ends: 1218 [2020-10-14 02:39:58,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:39:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-10-14 02:39:58,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1203. [2020-10-14 02:39:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2020-10-14 02:39:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1758 transitions. [2020-10-14 02:39:58,947 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1758 transitions. Word has length 127 [2020-10-14 02:39:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:39:58,949 INFO L479 AbstractCegarLoop]: Abstraction has 1203 states and 1758 transitions. [2020-10-14 02:39:58,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:39:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1758 transitions. [2020-10-14 02:39:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-14 02:39:58,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:58,963 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:39:58,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:39:58,967 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:58,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:58,968 INFO L82 PathProgramCache]: Analyzing trace with hash -579819310, now seen corresponding path program 1 times [2020-10-14 02:39:58,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:58,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489532578] [2020-10-14 02:39:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:59,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:59,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:59,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 02:39:59,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:39:59,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-10-14 02:39:59,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:59,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:39:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 02:39:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 02:40:00,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:00,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:00,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:00,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:00,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:00,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:00,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:00,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:00,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:00,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:00,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:40:00,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 02:40:00,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:00,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:40:00,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:40:00,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489532578] [2020-10-14 02:40:00,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:00,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:40:00,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269033841] [2020-10-14 02:40:00,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:00,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:00,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:00,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:00,200 INFO L87 Difference]: Start difference. First operand 1203 states and 1758 transitions. Second operand 5 states. [2020-10-14 02:40:02,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:02,403 INFO L93 Difference]: Finished difference Result 2793 states and 4156 transitions. [2020-10-14 02:40:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:02,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-14 02:40:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:02,420 INFO L225 Difference]: With dead ends: 2793 [2020-10-14 02:40:02,420 INFO L226 Difference]: Without dead ends: 1596 [2020-10-14 02:40:02,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:40:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2020-10-14 02:40:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1585. [2020-10-14 02:40:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2020-10-14 02:40:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2354 transitions. [2020-10-14 02:40:02,471 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2354 transitions. Word has length 141 [2020-10-14 02:40:02,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:02,471 INFO L479 AbstractCegarLoop]: Abstraction has 1585 states and 2354 transitions. [2020-10-14 02:40:02,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:02,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2354 transitions. [2020-10-14 02:40:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-14 02:40:02,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:02,476 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:02,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:40:02,476 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:02,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:02,477 INFO L82 PathProgramCache]: Analyzing trace with hash -56907506, now seen corresponding path program 1 times [2020-10-14 02:40:02,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:02,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624776417] [2020-10-14 02:40:02,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:02,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:02,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 02:40:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-10-14 02:40:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:03,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-14 02:40:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:40:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:03,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:03,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:03,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:03,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:03,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:40:03,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:03,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:03,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:03,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:03,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:03,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 02:40:03,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:03,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 02:40:03,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:03,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-10-14 02:40:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:40:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:40:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:40:03,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624776417] [2020-10-14 02:40:03,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:40:03,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 02:40:03,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716809538] [2020-10-14 02:40:03,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:03,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:03,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:03,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:03,728 INFO L87 Difference]: Start difference. First operand 1585 states and 2354 transitions. Second operand 5 states. [2020-10-14 02:40:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:06,122 INFO L93 Difference]: Finished difference Result 4690 states and 7151 transitions. [2020-10-14 02:40:06,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:06,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 197 [2020-10-14 02:40:06,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:06,149 INFO L225 Difference]: With dead ends: 4690 [2020-10-14 02:40:06,149 INFO L226 Difference]: Without dead ends: 3111 [2020-10-14 02:40:06,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:40:06,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2020-10-14 02:40:06,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2917. [2020-10-14 02:40:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2917 states. [2020-10-14 02:40:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4104 transitions. [2020-10-14 02:40:06,257 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4104 transitions. Word has length 197 [2020-10-14 02:40:06,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:06,257 INFO L479 AbstractCegarLoop]: Abstraction has 2917 states and 4104 transitions. [2020-10-14 02:40:06,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4104 transitions. [2020-10-14 02:40:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 02:40:06,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:06,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:06,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:40:06,268 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:06,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:06,269 INFO L82 PathProgramCache]: Analyzing trace with hash -232900683, now seen corresponding path program 1 times [2020-10-14 02:40:06,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:06,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226513080] [2020-10-14 02:40:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:06,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:06,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:06,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:06,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:10,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:11,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:11,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 02:40:11,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:40:11,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 02:40:11,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:11,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:40:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 02:40:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:11,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:11,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:11,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:11,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:11,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:40:11,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:11,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:11,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:11,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:11,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:11,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:40:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 02:40:11,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:11,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:40:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:11,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:40:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:11,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:11,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:11,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:40:11,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 02:40:11,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:11,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 02:40:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:11,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226513080] [2020-10-14 02:40:11,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:11,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:11,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708484113] [2020-10-14 02:40:11,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:11,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:11,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:11,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:11,875 INFO L87 Difference]: Start difference. First operand 2917 states and 4104 transitions. Second operand 7 states. [2020-10-14 02:40:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:16,888 INFO L93 Difference]: Finished difference Result 8670 states and 14010 transitions. [2020-10-14 02:40:16,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:40:16,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-14 02:40:16,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:16,936 INFO L225 Difference]: With dead ends: 8670 [2020-10-14 02:40:16,936 INFO L226 Difference]: Without dead ends: 5759 [2020-10-14 02:40:16,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:40:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2020-10-14 02:40:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5627. [2020-10-14 02:40:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5627 states. [2020-10-14 02:40:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5627 states to 5627 states and 8010 transitions. [2020-10-14 02:40:17,170 INFO L78 Accepts]: Start accepts. Automaton has 5627 states and 8010 transitions. Word has length 228 [2020-10-14 02:40:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:17,171 INFO L479 AbstractCegarLoop]: Abstraction has 5627 states and 8010 transitions. [2020-10-14 02:40:17,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5627 states and 8010 transitions. [2020-10-14 02:40:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-14 02:40:17,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:17,187 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:17,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:40:17,188 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:17,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1545166087, now seen corresponding path program 1 times [2020-10-14 02:40:17,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:17,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100951377] [2020-10-14 02:40:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:17,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:17,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:19,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:19,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:22,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:22,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-14 02:40:22,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:40:22,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 02:40:22,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:22,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:40:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 02:40:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:22,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:22,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:22,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:40:22,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:22,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:22,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:22,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:22,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:40:22,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 02:40:22,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:22,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:40:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:40:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:22,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:22,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:40:22,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 02:40:22,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:22,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 02:40:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:22,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100951377] [2020-10-14 02:40:22,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:22,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:22,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270296751] [2020-10-14 02:40:22,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:22,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:22,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:22,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:22,769 INFO L87 Difference]: Start difference. First operand 5627 states and 8010 transitions. Second operand 7 states. [2020-10-14 02:40:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:26,338 INFO L93 Difference]: Finished difference Result 13107 states and 20907 transitions. [2020-10-14 02:40:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:40:26,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-14 02:40:26,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:26,417 INFO L225 Difference]: With dead ends: 13107 [2020-10-14 02:40:26,417 INFO L226 Difference]: Without dead ends: 8806 [2020-10-14 02:40:26,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:40:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8806 states. [2020-10-14 02:40:26,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8806 to 8523. [2020-10-14 02:40:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8523 states. [2020-10-14 02:40:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8523 states to 8523 states and 12092 transitions. [2020-10-14 02:40:26,804 INFO L78 Accepts]: Start accepts. Automaton has 8523 states and 12092 transitions. Word has length 242 [2020-10-14 02:40:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:26,805 INFO L479 AbstractCegarLoop]: Abstraction has 8523 states and 12092 transitions. [2020-10-14 02:40:26,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8523 states and 12092 transitions. [2020-10-14 02:40:26,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-14 02:40:26,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:26,825 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:26,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:40:26,825 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:26,826 INFO L82 PathProgramCache]: Analyzing trace with hash 43934511, now seen corresponding path program 1 times [2020-10-14 02:40:26,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:26,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509195375] [2020-10-14 02:40:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:26,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:26,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:27,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:29,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:31,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:31,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 02:40:31,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:40:31,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 02:40:31,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:31,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:40:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 02:40:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:31,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:31,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:31,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:31,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:31,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:31,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:31,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:31,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:31,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:31,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:32,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:32,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:40:32,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:32,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 02:40:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:32,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:32,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:32,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 02:40:32,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 02:40:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:32,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509195375] [2020-10-14 02:40:32,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:32,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:32,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660169344] [2020-10-14 02:40:32,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:32,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:32,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:32,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:32,463 INFO L87 Difference]: Start difference. First operand 8523 states and 12092 transitions. Second operand 7 states. [2020-10-14 02:40:34,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:34,874 INFO L93 Difference]: Finished difference Result 16055 states and 22891 transitions. [2020-10-14 02:40:34,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:40:34,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-10-14 02:40:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:34,919 INFO L225 Difference]: With dead ends: 16055 [2020-10-14 02:40:34,919 INFO L226 Difference]: Without dead ends: 7542 [2020-10-14 02:40:34,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:40:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7542 states. [2020-10-14 02:40:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7542 to 6401. [2020-10-14 02:40:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6401 states. [2020-10-14 02:40:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8322 transitions. [2020-10-14 02:40:35,116 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8322 transitions. Word has length 246 [2020-10-14 02:40:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:35,117 INFO L479 AbstractCegarLoop]: Abstraction has 6401 states and 8322 transitions. [2020-10-14 02:40:35,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8322 transitions. [2020-10-14 02:40:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-14 02:40:35,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:35,136 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:35,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:40:35,137 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:35,137 INFO L82 PathProgramCache]: Analyzing trace with hash 797956815, now seen corresponding path program 1 times [2020-10-14 02:40:35,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:35,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501318993] [2020-10-14 02:40:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:35,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:35,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:38,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 02:40:38,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:40:38,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3399 [2020-10-14 02:40:38,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:38,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:40:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:40:38,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:38,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:38,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:38,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:38,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:38,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:38,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:38,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:38,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:38,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:38,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:38,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:38,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:40:38,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 02:40:38,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:38,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:38,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:38,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:40:38,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:38,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:40:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:38,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:38,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:38,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 02:40:38,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:38,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:40:38,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:40:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:38,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501318993] [2020-10-14 02:40:38,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:38,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:38,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685874400] [2020-10-14 02:40:38,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:38,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:38,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:38,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:38,951 INFO L87 Difference]: Start difference. First operand 6401 states and 8322 transitions. Second operand 7 states. [2020-10-14 02:40:42,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:42,620 INFO L93 Difference]: Finished difference Result 16285 states and 22741 transitions. [2020-10-14 02:40:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:40:42,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2020-10-14 02:40:42,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:42,663 INFO L225 Difference]: With dead ends: 16285 [2020-10-14 02:40:42,664 INFO L226 Difference]: Without dead ends: 9894 [2020-10-14 02:40:42,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:40:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9894 states. [2020-10-14 02:40:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9894 to 9513. [2020-10-14 02:40:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9513 states. [2020-10-14 02:40:42,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9513 states to 9513 states and 12195 transitions. [2020-10-14 02:40:42,921 INFO L78 Accepts]: Start accepts. Automaton has 9513 states and 12195 transitions. Word has length 254 [2020-10-14 02:40:42,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:42,922 INFO L479 AbstractCegarLoop]: Abstraction has 9513 states and 12195 transitions. [2020-10-14 02:40:42,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 9513 states and 12195 transitions. [2020-10-14 02:40:42,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-14 02:40:42,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:42,937 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:42,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:40:42,937 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:42,938 INFO L82 PathProgramCache]: Analyzing trace with hash -701389057, now seen corresponding path program 1 times [2020-10-14 02:40:42,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:42,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694313600] [2020-10-14 02:40:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:43,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 02:40:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 02:40:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:43,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:43,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:43,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:43,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:43,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:43,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:43,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:43,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:43,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:43,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:43,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:43,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:43,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:43,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:43,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:40:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:43,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:43,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:43,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:40:43,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:40:43,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:43,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:40:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-14 02:40:44,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694313600] [2020-10-14 02:40:44,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:44,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:40:44,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335717378] [2020-10-14 02:40:44,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:40:44,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:44,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:40:44,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:40:44,037 INFO L87 Difference]: Start difference. First operand 9513 states and 12195 transitions. Second operand 5 states. [2020-10-14 02:40:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:46,398 INFO L93 Difference]: Finished difference Result 19578 states and 25052 transitions. [2020-10-14 02:40:46,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:40:46,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-10-14 02:40:46,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:46,444 INFO L225 Difference]: With dead ends: 19578 [2020-10-14 02:40:46,444 INFO L226 Difference]: Without dead ends: 10667 [2020-10-14 02:40:46,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:40:46,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2020-10-14 02:40:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 10097. [2020-10-14 02:40:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10097 states. [2020-10-14 02:40:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10097 states to 10097 states and 12858 transitions. [2020-10-14 02:40:46,684 INFO L78 Accepts]: Start accepts. Automaton has 10097 states and 12858 transitions. Word has length 280 [2020-10-14 02:40:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:46,685 INFO L479 AbstractCegarLoop]: Abstraction has 10097 states and 12858 transitions. [2020-10-14 02:40:46,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:40:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10097 states and 12858 transitions. [2020-10-14 02:40:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-14 02:40:46,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:46,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:46,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:40:46,703 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:46,704 INFO L82 PathProgramCache]: Analyzing trace with hash 125337111, now seen corresponding path program 1 times [2020-10-14 02:40:46,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:46,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133560141] [2020-10-14 02:40:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:46,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:46,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:47,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:40:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 02:40:47,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:47,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:47,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:47,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:47,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:47,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:47,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:47,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 114 [2020-10-14 02:40:48,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:48,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:48,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:40:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:48,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:40:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:48,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:48,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:48,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 02:40:48,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:40:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:48,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133560141] [2020-10-14 02:40:48,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:48,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:48,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856405511] [2020-10-14 02:40:48,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:48,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:48,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:48,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:48,359 INFO L87 Difference]: Start difference. First operand 10097 states and 12858 transitions. Second operand 7 states. [2020-10-14 02:40:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:40:51,825 INFO L93 Difference]: Finished difference Result 21340 states and 28863 transitions. [2020-10-14 02:40:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:40:51,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 297 [2020-10-14 02:40:51,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:40:51,860 INFO L225 Difference]: With dead ends: 21340 [2020-10-14 02:40:51,860 INFO L226 Difference]: Without dead ends: 11845 [2020-10-14 02:40:51,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:40:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2020-10-14 02:40:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 11615. [2020-10-14 02:40:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11615 states. [2020-10-14 02:40:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11615 states to 11615 states and 14662 transitions. [2020-10-14 02:40:52,176 INFO L78 Accepts]: Start accepts. Automaton has 11615 states and 14662 transitions. Word has length 297 [2020-10-14 02:40:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:40:52,177 INFO L479 AbstractCegarLoop]: Abstraction has 11615 states and 14662 transitions. [2020-10-14 02:40:52,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:40:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 11615 states and 14662 transitions. [2020-10-14 02:40:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-14 02:40:52,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:40:52,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:40:52,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 02:40:52,202 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:40:52,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:40:52,202 INFO L82 PathProgramCache]: Analyzing trace with hash -875616725, now seen corresponding path program 1 times [2020-10-14 02:40:52,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:40:52,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078154694] [2020-10-14 02:40:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:40:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:52,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:52,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:52,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:53,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:57,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:57,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 02:40:57,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:40:57,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 02:40:57,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:57,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-14 02:40:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 02:40:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:40:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:57,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:57,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:40:57,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:40:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:57,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:40:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:40:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:57,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:40:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:57,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:57,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:40:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:57,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 02:40:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:40:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:40:57,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:40:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:40:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:40:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:40:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:40:57,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078154694] [2020-10-14 02:40:57,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:40:57,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:40:57,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553193444] [2020-10-14 02:40:57,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:40:57,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:40:57,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:40:57,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:40:57,743 INFO L87 Difference]: Start difference. First operand 11615 states and 14662 transitions. Second operand 7 states. [2020-10-14 02:41:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:00,850 INFO L93 Difference]: Finished difference Result 21683 states and 29618 transitions. [2020-10-14 02:41:00,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:00,851 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2020-10-14 02:41:00,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:00,900 INFO L225 Difference]: With dead ends: 21683 [2020-10-14 02:41:00,900 INFO L226 Difference]: Without dead ends: 12948 [2020-10-14 02:41:00,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2020-10-14 02:41:01,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 12388. [2020-10-14 02:41:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12388 states. [2020-10-14 02:41:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12388 states to 12388 states and 15572 transitions. [2020-10-14 02:41:01,298 INFO L78 Accepts]: Start accepts. Automaton has 12388 states and 15572 transitions. Word has length 322 [2020-10-14 02:41:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:01,298 INFO L479 AbstractCegarLoop]: Abstraction has 12388 states and 15572 transitions. [2020-10-14 02:41:01,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:01,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12388 states and 15572 transitions. [2020-10-14 02:41:01,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-14 02:41:01,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:01,332 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:01,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 02:41:01,333 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:01,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:01,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1709369988, now seen corresponding path program 1 times [2020-10-14 02:41:01,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:01,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750084796] [2020-10-14 02:41:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:01,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:01,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:03,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:06,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:06,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-14 02:41:06,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:41:06,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 02:41:06,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:06,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-10-14 02:41:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:41:06,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:06,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:06,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:06,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:06,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:06,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:06,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:06,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:06,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:06,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:06,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:41:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:06,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:06,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:06,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 02:41:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 02:41:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:06,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:06,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:41:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 02:41:06,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750084796] [2020-10-14 02:41:06,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:06,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:06,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553659189] [2020-10-14 02:41:06,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:06,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:06,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:06,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:06,959 INFO L87 Difference]: Start difference. First operand 12388 states and 15572 transitions. Second operand 7 states. [2020-10-14 02:41:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:09,924 INFO L93 Difference]: Finished difference Result 25559 states and 32023 transitions. [2020-10-14 02:41:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:41:09,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-14 02:41:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:09,964 INFO L225 Difference]: With dead ends: 25559 [2020-10-14 02:41:09,964 INFO L226 Difference]: Without dead ends: 13181 [2020-10-14 02:41:09,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:41:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13181 states. [2020-10-14 02:41:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13181 to 13177. [2020-10-14 02:41:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13177 states. [2020-10-14 02:41:10,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13177 states to 13177 states and 16075 transitions. [2020-10-14 02:41:10,271 INFO L78 Accepts]: Start accepts. Automaton has 13177 states and 16075 transitions. Word has length 361 [2020-10-14 02:41:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:10,272 INFO L479 AbstractCegarLoop]: Abstraction has 13177 states and 16075 transitions. [2020-10-14 02:41:10,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13177 states and 16075 transitions. [2020-10-14 02:41:10,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-10-14 02:41:10,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:10,299 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:10,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 02:41:10,300 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:10,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:10,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2068126466, now seen corresponding path program 1 times [2020-10-14 02:41:10,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:10,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223977046] [2020-10-14 02:41:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:10,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:10,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:10,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:13,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:15,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-14 02:41:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 02:41:15,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:15,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:15,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:15,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:15,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:15,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:15,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:15,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:15,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:41:15,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 02:41:15,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:15,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:15,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:41:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:15,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:15,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 02:41:15,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:15,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:41:15,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:15,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 02:41:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:15,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 02:41:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:15,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:41:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 295 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 02:41:15,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223977046] [2020-10-14 02:41:15,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:15,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:15,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296995743] [2020-10-14 02:41:15,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:15,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:15,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:15,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:15,834 INFO L87 Difference]: Start difference. First operand 13177 states and 16075 transitions. Second operand 7 states. [2020-10-14 02:41:19,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:19,281 INFO L93 Difference]: Finished difference Result 26416 states and 33634 transitions. [2020-10-14 02:41:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:19,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2020-10-14 02:41:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:19,326 INFO L225 Difference]: With dead ends: 26416 [2020-10-14 02:41:19,326 INFO L226 Difference]: Without dead ends: 13841 [2020-10-14 02:41:19,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13841 states. [2020-10-14 02:41:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13841 to 13573. [2020-10-14 02:41:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13573 states. [2020-10-14 02:41:19,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13573 states to 13573 states and 16533 transitions. [2020-10-14 02:41:19,669 INFO L78 Accepts]: Start accepts. Automaton has 13573 states and 16533 transitions. Word has length 370 [2020-10-14 02:41:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:19,669 INFO L479 AbstractCegarLoop]: Abstraction has 13573 states and 16533 transitions. [2020-10-14 02:41:19,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 13573 states and 16533 transitions. [2020-10-14 02:41:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-10-14 02:41:19,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:19,718 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:19,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 02:41:19,719 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:19,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1143203342, now seen corresponding path program 1 times [2020-10-14 02:41:19,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:19,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467691092] [2020-10-14 02:41:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:19,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:19,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:20,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:21,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-14 02:41:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 02:41:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:24,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:24,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:24,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:24,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:24,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:24,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:24,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:41:24,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:24,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:41:24,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:24,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:41:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:24,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:41:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:25,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:25,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 02:41:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:25,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-14 02:41:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:25,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:25,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-14 02:41:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 227 proven. 110 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 02:41:25,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467691092] [2020-10-14 02:41:25,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:25,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:25,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127571380] [2020-10-14 02:41:25,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:25,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:25,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:25,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:25,249 INFO L87 Difference]: Start difference. First operand 13573 states and 16533 transitions. Second operand 7 states. [2020-10-14 02:41:28,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:28,182 INFO L93 Difference]: Finished difference Result 29583 states and 36116 transitions. [2020-10-14 02:41:28,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:41:28,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 377 [2020-10-14 02:41:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:28,210 INFO L225 Difference]: With dead ends: 29583 [2020-10-14 02:41:28,211 INFO L226 Difference]: Without dead ends: 16626 [2020-10-14 02:41:28,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:28,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16626 states. [2020-10-14 02:41:28,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16626 to 16041. [2020-10-14 02:41:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16041 states. [2020-10-14 02:41:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16041 states to 16041 states and 19447 transitions. [2020-10-14 02:41:28,516 INFO L78 Accepts]: Start accepts. Automaton has 16041 states and 19447 transitions. Word has length 377 [2020-10-14 02:41:28,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:28,517 INFO L479 AbstractCegarLoop]: Abstraction has 16041 states and 19447 transitions. [2020-10-14 02:41:28,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 16041 states and 19447 transitions. [2020-10-14 02:41:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-10-14 02:41:28,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:28,538 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:28,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 02:41:28,538 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:28,538 INFO L82 PathProgramCache]: Analyzing trace with hash 191944134, now seen corresponding path program 1 times [2020-10-14 02:41:28,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:28,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553878921] [2020-10-14 02:41:28,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:28,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:28,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:29,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:32,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:32,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-14 02:41:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:41:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3695 [2020-10-14 02:41:32,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:32,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:41:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:41:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:32,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:32,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:32,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:41:32,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:32,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:32,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:32,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:32,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:32,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:41:32,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 02:41:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:32,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:41:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:41:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:32,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:32,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:32,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 02:41:32,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:32,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 02:41:32,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:32,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:32,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:32,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:32,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 02:41:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:32,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-14 02:41:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:32,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:32,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 02:41:32,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 262 proven. 110 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-14 02:41:32,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553878921] [2020-10-14 02:41:32,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:32,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:32,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830755320] [2020-10-14 02:41:32,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:32,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:32,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:32,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:32,824 INFO L87 Difference]: Start difference. First operand 16041 states and 19447 transitions. Second operand 7 states. [2020-10-14 02:41:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:35,623 INFO L93 Difference]: Finished difference Result 33572 states and 40680 transitions. [2020-10-14 02:41:35,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:35,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 420 [2020-10-14 02:41:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:35,655 INFO L225 Difference]: With dead ends: 33572 [2020-10-14 02:41:35,656 INFO L226 Difference]: Without dead ends: 18147 [2020-10-14 02:41:35,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18147 states. [2020-10-14 02:41:35,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18147 to 17939. [2020-10-14 02:41:35,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17939 states. [2020-10-14 02:41:35,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17939 states to 17939 states and 21525 transitions. [2020-10-14 02:41:35,986 INFO L78 Accepts]: Start accepts. Automaton has 17939 states and 21525 transitions. Word has length 420 [2020-10-14 02:41:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:35,986 INFO L479 AbstractCegarLoop]: Abstraction has 17939 states and 21525 transitions. [2020-10-14 02:41:35,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 17939 states and 21525 transitions. [2020-10-14 02:41:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-10-14 02:41:36,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:36,006 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:36,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 02:41:36,006 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:36,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:36,006 INFO L82 PathProgramCache]: Analyzing trace with hash 632648312, now seen corresponding path program 1 times [2020-10-14 02:41:36,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:36,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532625109] [2020-10-14 02:41:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:36,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:40,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:41,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:41,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 446 [2020-10-14 02:41:41,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:41:41,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 02:41:41,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:41,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-14 02:41:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 02:41:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:41,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:41,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:41,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:41,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:41:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:41,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:41:41,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:41,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:41,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:41:41,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:41,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 02:41:41,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:41,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:41,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:41:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:41,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:41,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:41,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 02:41:41,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 02:41:41,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:41,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:41:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-14 02:41:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:41,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:41,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:41:41,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:41,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 02:41:41,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:41,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:41,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:41:41,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 357 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 02:41:41,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532625109] [2020-10-14 02:41:41,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:41,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:41,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576908378] [2020-10-14 02:41:41,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:41,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:41,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:41,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:41,952 INFO L87 Difference]: Start difference. First operand 17939 states and 21525 transitions. Second operand 7 states. [2020-10-14 02:41:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:45,943 INFO L93 Difference]: Finished difference Result 37004 states and 46334 transitions. [2020-10-14 02:41:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:45,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 432 [2020-10-14 02:41:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:45,988 INFO L225 Difference]: With dead ends: 37004 [2020-10-14 02:41:45,988 INFO L226 Difference]: Without dead ends: 19681 [2020-10-14 02:41:46,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:46,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19681 states. [2020-10-14 02:41:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19681 to 19281. [2020-10-14 02:41:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19281 states. [2020-10-14 02:41:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19281 states to 19281 states and 23070 transitions. [2020-10-14 02:41:46,370 INFO L78 Accepts]: Start accepts. Automaton has 19281 states and 23070 transitions. Word has length 432 [2020-10-14 02:41:46,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:46,371 INFO L479 AbstractCegarLoop]: Abstraction has 19281 states and 23070 transitions. [2020-10-14 02:41:46,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:46,371 INFO L276 IsEmpty]: Start isEmpty. Operand 19281 states and 23070 transitions. [2020-10-14 02:41:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2020-10-14 02:41:46,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:46,393 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:46,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 02:41:46,393 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:46,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1295595791, now seen corresponding path program 1 times [2020-10-14 02:41:46,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:46,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438522347] [2020-10-14 02:41:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:46,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:46,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:46,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:49,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:51,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 462 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 02:41:51,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:51,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:41:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:51,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:51,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:41:51,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:51,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:41:51,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:51,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:51,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:51,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:41:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:51,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:51,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:51,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:41:51,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:51,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 02:41:51,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:51,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:41:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:41:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:51,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:41:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:51,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:51,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:51,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 02:41:51,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:51,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-14 02:41:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:51,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:41:51,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:41:51,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:41:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 02:41:51,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:41:51,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:41:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:41:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:41:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:41:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:41:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 373 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 02:41:52,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438522347] [2020-10-14 02:41:52,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:41:52,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:41:52,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100187804] [2020-10-14 02:41:52,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:41:52,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:41:52,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:41:52,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:41:52,037 INFO L87 Difference]: Start difference. First operand 19281 states and 23070 transitions. Second operand 7 states. [2020-10-14 02:41:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:41:55,735 INFO L93 Difference]: Finished difference Result 39750 states and 49795 transitions. [2020-10-14 02:41:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:41:55,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 448 [2020-10-14 02:41:55,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:41:55,789 INFO L225 Difference]: With dead ends: 39750 [2020-10-14 02:41:55,790 INFO L226 Difference]: Without dead ends: 21087 [2020-10-14 02:41:55,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:41:55,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21087 states. [2020-10-14 02:41:56,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21087 to 20609. [2020-10-14 02:41:56,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20609 states. [2020-10-14 02:41:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20609 states to 20609 states and 24554 transitions. [2020-10-14 02:41:56,237 INFO L78 Accepts]: Start accepts. Automaton has 20609 states and 24554 transitions. Word has length 448 [2020-10-14 02:41:56,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:41:56,237 INFO L479 AbstractCegarLoop]: Abstraction has 20609 states and 24554 transitions. [2020-10-14 02:41:56,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:41:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 20609 states and 24554 transitions. [2020-10-14 02:41:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-14 02:41:56,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:41:56,269 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:41:56,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 02:41:56,270 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:41:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:41:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash 590274198, now seen corresponding path program 1 times [2020-10-14 02:41:56,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:41:56,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257681137] [2020-10-14 02:41:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:41:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:41:56,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:56,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:56,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:41:57,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:01,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4639 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-14 02:42:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 02:42:01,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:01,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:01,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:01,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:01,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:01,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:01,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:42:01,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:01,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:01,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:01,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:01,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:42:01,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:42:01,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:01,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:42:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:01,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:01,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 02:42:01,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 02:42:01,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:01,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:01,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:42:01,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-14 02:42:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:01,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 02:42:01,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 383 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 02:42:01,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257681137] [2020-10-14 02:42:01,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:01,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:01,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027237678] [2020-10-14 02:42:01,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:01,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:01,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:01,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:01,613 INFO L87 Difference]: Start difference. First operand 20609 states and 24554 transitions. Second operand 7 states. [2020-10-14 02:42:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:05,117 INFO L93 Difference]: Finished difference Result 39716 states and 49479 transitions. [2020-10-14 02:42:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:42:05,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 458 [2020-10-14 02:42:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:05,167 INFO L225 Difference]: With dead ends: 39716 [2020-10-14 02:42:05,167 INFO L226 Difference]: Without dead ends: 22577 [2020-10-14 02:42:05,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:42:05,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22577 states. [2020-10-14 02:42:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22577 to 21179. [2020-10-14 02:42:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21179 states. [2020-10-14 02:42:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21179 states to 21179 states and 25090 transitions. [2020-10-14 02:42:05,641 INFO L78 Accepts]: Start accepts. Automaton has 21179 states and 25090 transitions. Word has length 458 [2020-10-14 02:42:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:05,642 INFO L479 AbstractCegarLoop]: Abstraction has 21179 states and 25090 transitions. [2020-10-14 02:42:05,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 21179 states and 25090 transitions. [2020-10-14 02:42:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-10-14 02:42:05,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:05,669 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:42:05,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 02:42:05,670 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:05,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1623567098, now seen corresponding path program 1 times [2020-10-14 02:42:05,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:05,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418183853] [2020-10-14 02:42:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:05,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:06,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:10,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 479 [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 02:42:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:42:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:10,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:10,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:10,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:10,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:10,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:10,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:10,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 02:42:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:11,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 02:42:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:11,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 02:42:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:11,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 02:42:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:11,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:42:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 02:42:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:11,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2020-10-14 02:42:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:11,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:11,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:11,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 02:42:11,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:11,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:42:11,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:11,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-14 02:42:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:11,486 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 262 proven. 110 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-14 02:42:11,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418183853] [2020-10-14 02:42:11,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:11,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:42:11,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007578095] [2020-10-14 02:42:11,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:42:11,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:11,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:42:11,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:42:11,487 INFO L87 Difference]: Start difference. First operand 21179 states and 25090 transitions. Second operand 7 states. [2020-10-14 02:42:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:14,701 INFO L93 Difference]: Finished difference Result 41958 states and 49664 transitions. [2020-10-14 02:42:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:42:14,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 465 [2020-10-14 02:42:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:14,746 INFO L225 Difference]: With dead ends: 41958 [2020-10-14 02:42:14,746 INFO L226 Difference]: Without dead ends: 23095 [2020-10-14 02:42:14,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:42:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23095 states. [2020-10-14 02:42:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23095 to 22699. [2020-10-14 02:42:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22699 states. [2020-10-14 02:42:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22699 states to 22699 states and 26860 transitions. [2020-10-14 02:42:15,138 INFO L78 Accepts]: Start accepts. Automaton has 22699 states and 26860 transitions. Word has length 465 [2020-10-14 02:42:15,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:15,139 INFO L479 AbstractCegarLoop]: Abstraction has 22699 states and 26860 transitions. [2020-10-14 02:42:15,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:42:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 22699 states and 26860 transitions. [2020-10-14 02:42:15,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2020-10-14 02:42:15,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:42:15,169 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:42:15,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 02:42:15,169 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:42:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:42:15,170 INFO L82 PathProgramCache]: Analyzing trace with hash 587122303, now seen corresponding path program 1 times [2020-10-14 02:42:15,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:42:15,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834083307] [2020-10-14 02:42:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:42:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:15,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:15,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:16,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:17,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:19,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:20,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 491 [2020-10-14 02:42:20,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 02:42:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 02:42:20,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:20,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:42:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 438 [2020-10-14 02:42:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 02:42:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:20,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:42:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:20,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:42:20,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:20,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:42:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:20,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 02:42:20,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:20,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 02:42:20,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:20,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:20,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:20,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 02:42:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:20,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 02:42:20,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 02:42:20,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:20,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:42:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:42:20,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:20,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-10-14 02:42:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:42:20,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:42:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:42:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 02:42:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:42:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2020-10-14 02:42:20,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834083307] [2020-10-14 02:42:20,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:42:20,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:42:20,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699701488] [2020-10-14 02:42:20,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:42:20,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:42:20,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:42:20,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:42:20,746 INFO L87 Difference]: Start difference. First operand 22699 states and 26860 transitions. Second operand 5 states. [2020-10-14 02:42:22,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:42:22,955 INFO L93 Difference]: Finished difference Result 25161 states and 29825 transitions. [2020-10-14 02:42:22,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:42:22,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 477 [2020-10-14 02:42:22,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:42:22,956 INFO L225 Difference]: With dead ends: 25161 [2020-10-14 02:42:22,956 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 02:42:22,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:42:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 02:42:22,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 02:42:22,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 02:42:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 02:42:22,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 477 [2020-10-14 02:42:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:42:22,980 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 02:42:22,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:42:22,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 02:42:22,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 02:42:22,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 02:42:22,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 02:42:33,576 WARN L193 SmtUtils]: Spent 9.20 s on a formula simplification. DAG size of input: 1819 DAG size of output: 1493 [2020-10-14 02:42:42,360 WARN L193 SmtUtils]: Spent 8.77 s on a formula simplification. DAG size of input: 1819 DAG size of output: 1493 [2020-10-14 02:42:45,514 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 439 DAG size of output: 85 [2020-10-14 02:43:12,185 WARN L193 SmtUtils]: Spent 26.63 s on a formula simplification. DAG size of input: 1441 DAG size of output: 74