/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=BIGGEST --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/Problem14_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:56:08,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:56:08,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:56:08,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:56:08,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:56:08,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:56:08,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:56:08,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:56:08,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:56:08,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:56:08,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:56:08,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:56:08,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:56:08,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:56:08,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:56:08,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:56:08,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:56:08,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:56:08,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:56:08,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:56:08,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:56:08,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:56:08,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:56:08,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:56:08,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:56:08,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:56:08,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:56:08,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:56:08,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:56:08,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:56:08,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:56:08,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:56:08,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:56:08,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:56:08,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:56:08,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:56:08,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:56:08,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:56:08,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:56:08,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:56:08,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:56:08,161 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 [2020-10-12 13:56:08,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:56:08,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:56:08,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:56:08,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:56:08,210 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:56:08,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:56:08,211 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:56:08,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:56:08,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:56:08,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:56:08,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:56:08,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:56:08,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:56:08,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:56:08,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:56:08,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:56:08,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:56:08,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:56:08,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:56:08,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:56:08,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:56:08,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:56:08,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:56:08,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:56:08,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:56:08,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:56:08,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:56:08,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:56:08,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:56:08,219 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 13:56:08,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:56:08,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:56:08,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:56:08,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:56:08,547 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:56:08,547 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label22.c [2020-10-12 13:56:08,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a01281c26/1203508548034b54ac00179491919892/FLAG3432f688c [2020-10-12 13:56:09,238 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:56:09,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label22.c [2020-10-12 13:56:09,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a01281c26/1203508548034b54ac00179491919892/FLAG3432f688c [2020-10-12 13:56:09,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a01281c26/1203508548034b54ac00179491919892 [2020-10-12 13:56:09,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:56:09,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:56:09,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:56:09,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:56:09,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:56:09,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:56:09" (1/1) ... [2020-10-12 13:56:09,481 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 12.10 01:56:09, skipping insertion in model container [2020-10-12 13:56:09,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:56:09" (1/1) ... [2020-10-12 13:56:09,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:56:09,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:56:10,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:56:10,220 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:56:10,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:56:10,414 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:56:10,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10 WrapperNode [2020-10-12 13:56:10,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:56:10,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:56:10,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:56:10,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:56:10,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... [2020-10-12 13:56:10,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:56:10,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:56:10,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:56:10,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:56:10,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:56:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:56:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:56:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:56:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:56:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:56:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:56:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:56:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:56:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:56:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:56:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:56:12,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:56:12,143 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:56:12,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:56:12 BoogieIcfgContainer [2020-10-12 13:56:12,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:56:12,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:56:12,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:56:12,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:56:12,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:56:09" (1/3) ... [2020-10-12 13:56:12,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7494ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:56:12, skipping insertion in model container [2020-10-12 13:56:12,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:10" (2/3) ... [2020-10-12 13:56:12,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7494ddcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:56:12, skipping insertion in model container [2020-10-12 13:56:12,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:56:12" (3/3) ... [2020-10-12 13:56:12,158 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label22.c [2020-10-12 13:56:12,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:56:12,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:56:12,190 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:56:12,217 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:56:12,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:56:12,217 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:56:12,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:56:12,218 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:56:12,218 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:56:12,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:56:12,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:56:12,242 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 13:56:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 13:56:12,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:12,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:12,250 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:12,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1330652446, now seen corresponding path program 1 times [2020-10-12 13:56:12,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:12,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681391590] [2020-10-12 13:56:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:12,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:12,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:12,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 13:56:12,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:12,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-12 13:56:12,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 13:56:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:56:12,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:12,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:12,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:56:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:12,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681391590] [2020-10-12 13:56:12,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:12,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:56:12,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146134698] [2020-10-12 13:56:12,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:56:12,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:12,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:56:12,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:56:12,805 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 13:56:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:14,478 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-12 13:56:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:56:14,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-12 13:56:14,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:14,504 INFO L225 Difference]: With dead ends: 698 [2020-10-12 13:56:14,504 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 13:56:14,512 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 [2020-10-12 13:56:14,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 13:56:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-12 13:56:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-12 13:56:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-12 13:56:14,596 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 19 [2020-10-12 13:56:14,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:14,597 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-12 13:56:14,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:56:14,597 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-12 13:56:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 13:56:14,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:14,602 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 13:56:14,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:56:14,603 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:14,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:14,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1031032857, now seen corresponding path program 1 times [2020-10-12 13:56:14,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:14,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119652206] [2020-10-12 13:56:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:14,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:14,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:15,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:15,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 13:56:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 645 [2020-10-12 13:56:15,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:56:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:15,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:15,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:15,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:15,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:15,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:56:15,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:15,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:15,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:15,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:15,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:15,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:15,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:15,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:15,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:56:15,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 13:56:15,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:56:15,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:15,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119652206] [2020-10-12 13:56:15,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:15,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:56:15,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916549693] [2020-10-12 13:56:15,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:15,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:15,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:15,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:15,530 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 7 states. [2020-10-12 13:56:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:17,570 INFO L93 Difference]: Finished difference Result 1144 states and 1877 transitions. [2020-10-12 13:56:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:56:17,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-12 13:56:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:17,578 INFO L225 Difference]: With dead ends: 1144 [2020-10-12 13:56:17,579 INFO L226 Difference]: Without dead ends: 776 [2020-10-12 13:56:17,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:56:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-10-12 13:56:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 752. [2020-10-12 13:56:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2020-10-12 13:56:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1067 transitions. [2020-10-12 13:56:17,639 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1067 transitions. Word has length 88 [2020-10-12 13:56:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:17,640 INFO L479 AbstractCegarLoop]: Abstraction has 752 states and 1067 transitions. [2020-10-12 13:56:17,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:17,640 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1067 transitions. [2020-10-12 13:56:17,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 13:56:17,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:17,644 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:17,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:56:17,644 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:17,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:17,645 INFO L82 PathProgramCache]: Analyzing trace with hash -700188994, now seen corresponding path program 1 times [2020-10-12 13:56:17,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:17,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625556572] [2020-10-12 13:56:17,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 13:56:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-12 13:56:18,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 13:56:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:18,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 13:56:18,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:56:18,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 13:56:18,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:56:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:18,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625556572] [2020-10-12 13:56:18,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:18,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:56:18,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423500477] [2020-10-12 13:56:18,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:18,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:18,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:18,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:18,403 INFO L87 Difference]: Start difference. First operand 752 states and 1067 transitions. Second operand 7 states. [2020-10-12 13:56:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:20,036 INFO L93 Difference]: Finished difference Result 1888 states and 2717 transitions. [2020-10-12 13:56:20,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:56:20,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-12 13:56:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:20,047 INFO L225 Difference]: With dead ends: 1888 [2020-10-12 13:56:20,048 INFO L226 Difference]: Without dead ends: 1142 [2020-10-12 13:56:20,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:56:20,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-12 13:56:20,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1132. [2020-10-12 13:56:20,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1132 states. [2020-10-12 13:56:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1547 transitions. [2020-10-12 13:56:20,127 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1547 transitions. Word has length 89 [2020-10-12 13:56:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:20,129 INFO L479 AbstractCegarLoop]: Abstraction has 1132 states and 1547 transitions. [2020-10-12 13:56:20,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1547 transitions. [2020-10-12 13:56:20,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 13:56:20,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:20,141 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 13:56:20,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:56:20,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:20,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:20,143 INFO L82 PathProgramCache]: Analyzing trace with hash -357936799, now seen corresponding path program 1 times [2020-10-12 13:56:20,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:20,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128600770] [2020-10-12 13:56:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:20,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:20,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:20,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:20,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 13:56:20,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:20,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-12 13:56:20,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:20,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 13:56:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:20,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:20,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:20,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:20,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:56:20,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:20,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 13:56:21,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:21,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:21,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:21,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:56:21,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-12 13:56:21,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:56:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:21,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128600770] [2020-10-12 13:56:21,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:21,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:56:21,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673744480] [2020-10-12 13:56:21,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:21,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:21,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:21,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:21,263 INFO L87 Difference]: Start difference. First operand 1132 states and 1547 transitions. Second operand 7 states. [2020-10-12 13:56:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:22,973 INFO L93 Difference]: Finished difference Result 2850 states and 3836 transitions. [2020-10-12 13:56:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:56:22,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-12 13:56:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:22,987 INFO L225 Difference]: With dead ends: 2850 [2020-10-12 13:56:22,987 INFO L226 Difference]: Without dead ends: 1724 [2020-10-12 13:56:22,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:56:22,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2020-10-12 13:56:23,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1690. [2020-10-12 13:56:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-10-12 13:56:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2192 transitions. [2020-10-12 13:56:23,051 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2192 transitions. Word has length 92 [2020-10-12 13:56:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:23,051 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 2192 transitions. [2020-10-12 13:56:23,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:23,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2192 transitions. [2020-10-12 13:56:23,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 13:56:23,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:23,053 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 13:56:23,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:56:23,054 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:23,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:23,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1686042106, now seen corresponding path program 1 times [2020-10-12 13:56:23,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:23,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834318087] [2020-10-12 13:56:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:23,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:23,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:23,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:56:23,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 13:56:23,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 13:56:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 13:56:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:23,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:23,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:23,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:23,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:56:23,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:23,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:23,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:23,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:23,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:56:23,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:23,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 13:56:23,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 13:56:23,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:23,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834318087] [2020-10-12 13:56:23,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:23,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:56:23,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308189764] [2020-10-12 13:56:23,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:56:23,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:23,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:56:23,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:56:23,393 INFO L87 Difference]: Start difference. First operand 1690 states and 2192 transitions. Second operand 5 states. [2020-10-12 13:56:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:24,994 INFO L93 Difference]: Finished difference Result 3562 states and 4722 transitions. [2020-10-12 13:56:24,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:56:24,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-12 13:56:24,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:25,005 INFO L225 Difference]: With dead ends: 3562 [2020-10-12 13:56:25,006 INFO L226 Difference]: Without dead ends: 1694 [2020-10-12 13:56:25,010 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 [2020-10-12 13:56:25,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2020-10-12 13:56:25,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1502. [2020-10-12 13:56:25,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-10-12 13:56:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1942 transitions. [2020-10-12 13:56:25,058 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1942 transitions. Word has length 103 [2020-10-12 13:56:25,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:25,063 INFO L479 AbstractCegarLoop]: Abstraction has 1502 states and 1942 transitions. [2020-10-12 13:56:25,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:56:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1942 transitions. [2020-10-12 13:56:25,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-12 13:56:25,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:25,070 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:25,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:56:25,070 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:25,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:25,071 INFO L82 PathProgramCache]: Analyzing trace with hash 592170621, now seen corresponding path program 1 times [2020-10-12 13:56:25,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:25,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833551302] [2020-10-12 13:56:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:25,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:25,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:25,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:26,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:27,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:27,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 13:56:27,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:56:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2721 [2020-10-12 13:56:27,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:56:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 13:56:27,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:27,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:27,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:27,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:27,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:27,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:27,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:56:27,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:27,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:27,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:27,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:27,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:28,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:28,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:56:28,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 13:56:28,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 13:56:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:28,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 13:56:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:28,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:28,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:28,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:56:28,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:28,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 13:56:28,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:56:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 25 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 13:56:28,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833551302] [2020-10-12 13:56:28,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:28,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:56:28,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054958280] [2020-10-12 13:56:28,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:56:28,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:28,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:56:28,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:56:28,750 INFO L87 Difference]: Start difference. First operand 1502 states and 1942 transitions. Second operand 8 states. [2020-10-12 13:56:30,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:30,767 INFO L93 Difference]: Finished difference Result 3042 states and 3945 transitions. [2020-10-12 13:56:30,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 13:56:30,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-10-12 13:56:30,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:30,775 INFO L225 Difference]: With dead ends: 3042 [2020-10-12 13:56:30,776 INFO L226 Difference]: Without dead ends: 1544 [2020-10-12 13:56:30,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-12 13:56:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2020-10-12 13:56:30,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1500. [2020-10-12 13:56:30,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2020-10-12 13:56:30,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1927 transitions. [2020-10-12 13:56:30,819 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1927 transitions. Word has length 186 [2020-10-12 13:56:30,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:30,820 INFO L479 AbstractCegarLoop]: Abstraction has 1500 states and 1927 transitions. [2020-10-12 13:56:30,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:56:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1927 transitions. [2020-10-12 13:56:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-12 13:56:30,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:30,824 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 13:56:30,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:56:30,825 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:30,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1057681157, now seen corresponding path program 1 times [2020-10-12 13:56:30,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:30,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846058226] [2020-10-12 13:56:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:31,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:33,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:33,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:33,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:35,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:35,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-12 13:56:35,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:56:35,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 13:56:35,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:35,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:35,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:35,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 13:56:35,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:35,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:35,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:35,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:35,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:35,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:35,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:56:35,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:35,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:35,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:35,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:35,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:36,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:36,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:36,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:36,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 13:56:36,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:56:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:36,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:56:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:36,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:36,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:36,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:56:36,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:36,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:56:36,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:36,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:36,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 13:56:36,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:36,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:36,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-12 13:56:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:36,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:36,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:56:36,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:36,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:56:36,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 13:56:36,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:36,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:36,447 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 36 proven. 142 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-12 13:56:36,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846058226] [2020-10-12 13:56:36,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:36,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:56:36,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342908174] [2020-10-12 13:56:36,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:56:36,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:36,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:56:36,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:56:36,453 INFO L87 Difference]: Start difference. First operand 1500 states and 1927 transitions. Second operand 8 states. [2020-10-12 13:56:39,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:39,562 INFO L93 Difference]: Finished difference Result 4122 states and 5628 transitions. [2020-10-12 13:56:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 13:56:39,564 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 280 [2020-10-12 13:56:39,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:39,577 INFO L225 Difference]: With dead ends: 4122 [2020-10-12 13:56:39,577 INFO L226 Difference]: Without dead ends: 2810 [2020-10-12 13:56:39,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-12 13:56:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2020-10-12 13:56:39,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2442. [2020-10-12 13:56:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2442 states. [2020-10-12 13:56:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3095 transitions. [2020-10-12 13:56:39,644 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3095 transitions. Word has length 280 [2020-10-12 13:56:39,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:39,645 INFO L479 AbstractCegarLoop]: Abstraction has 2442 states and 3095 transitions. [2020-10-12 13:56:39,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:56:39,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3095 transitions. [2020-10-12 13:56:39,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-12 13:56:39,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:39,652 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 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] [2020-10-12 13:56:39,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:56:39,653 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:39,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:39,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1545165798, now seen corresponding path program 1 times [2020-10-12 13:56:39,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:39,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062226213] [2020-10-12 13:56:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:39,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:39,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:40,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-12 13:56:44,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:56:44,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 13:56:44,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 390 [2020-10-12 13:56:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 13:56:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:44,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:44,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:44,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:56:44,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:44,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:44,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:44,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:56:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:44,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:44,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:56:44,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:44,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:44,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:44,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:44,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:44,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:56:44,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:44,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:56:44,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:44,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:44,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:44,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:45,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-12 13:56:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:45,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:45,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:56:45,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 13:56:45,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:56:45,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 53 proven. 4 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2020-10-12 13:56:45,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062226213] [2020-10-12 13:56:45,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:45,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:56:45,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595902877] [2020-10-12 13:56:45,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:56:45,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:45,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:56:45,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:56:45,225 INFO L87 Difference]: Start difference. First operand 2442 states and 3095 transitions. Second operand 5 states. [2020-10-12 13:56:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:46,327 INFO L93 Difference]: Finished difference Result 4522 states and 5851 transitions. [2020-10-12 13:56:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:56:46,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2020-10-12 13:56:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:46,336 INFO L225 Difference]: With dead ends: 4522 [2020-10-12 13:56:46,336 INFO L226 Difference]: Without dead ends: 2440 [2020-10-12 13:56:46,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:56:46,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2020-10-12 13:56:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2020-10-12 13:56:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2440 states. [2020-10-12 13:56:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3082 transitions. [2020-10-12 13:56:46,390 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3082 transitions. Word has length 393 [2020-10-12 13:56:46,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:46,391 INFO L479 AbstractCegarLoop]: Abstraction has 2440 states and 3082 transitions. [2020-10-12 13:56:46,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:56:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3082 transitions. [2020-10-12 13:56:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-10-12 13:56:46,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:46,402 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-12 13:56:46,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:56:46,403 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash 438855702, now seen corresponding path program 1 times [2020-10-12 13:56:46,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:46,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768951250] [2020-10-12 13:56:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:46,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:46,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:47,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:50,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 497 [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 402 [2020-10-12 13:56:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 13:56:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:51,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:56:51,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:51,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:56:51,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:51,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:56:51,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:56:51,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:51,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-12 13:56:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:56:51,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 13:56:51,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:51,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 13:56:51,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:51,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-12 13:56:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:56:51,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 13:56:51,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:56:51,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 357 proven. 2 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2020-10-12 13:56:52,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768951250] [2020-10-12 13:56:52,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:52,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:56:52,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063255794] [2020-10-12 13:56:52,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:52,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:52,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:52,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:52,223 INFO L87 Difference]: Start difference. First operand 2440 states and 3082 transitions. Second operand 7 states. [2020-10-12 13:56:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:54,119 INFO L93 Difference]: Finished difference Result 4514 states and 5917 transitions. [2020-10-12 13:56:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:56:54,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 479 [2020-10-12 13:56:54,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:54,127 INFO L225 Difference]: With dead ends: 4514 [2020-10-12 13:56:54,128 INFO L226 Difference]: Without dead ends: 2076 [2020-10-12 13:56:54,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:56:54,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2020-10-12 13:56:54,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1872. [2020-10-12 13:56:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1872 states. [2020-10-12 13:56:54,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2267 transitions. [2020-10-12 13:56:54,177 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2267 transitions. Word has length 479 [2020-10-12 13:56:54,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:54,178 INFO L479 AbstractCegarLoop]: Abstraction has 1872 states and 2267 transitions. [2020-10-12 13:56:54,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:54,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2267 transitions. [2020-10-12 13:56:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2020-10-12 13:56:54,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:54,190 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:54,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:56:54,191 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:54,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1917852431, now seen corresponding path program 1 times [2020-10-12 13:56:54,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:54,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389161134] [2020-10-12 13:56:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:54,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:55,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 514 [2020-10-12 13:56:59,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:56:59,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 13:56:59,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 305 [2020-10-12 13:56:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 13:56:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:59,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:59,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:59,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:56:59,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:59,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:59,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:59,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:59,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:59,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:56:59,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:59,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:59,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:59,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:56:59,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:59,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:59,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:59,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:56:59,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:56:59,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:59,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 13:56:59,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:59,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-12 13:56:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:59,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:56:59,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 13:56:59,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:59,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:56:59,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:59,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2020-10-12 13:56:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:59,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:59,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:59,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:56:59,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:59,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 13:56:59,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:56:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 364 proven. 73 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2020-10-12 13:57:00,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389161134] [2020-10-12 13:57:00,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:00,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:57:00,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672701875] [2020-10-12 13:57:00,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:57:00,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:00,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:57:00,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:57:00,385 INFO L87 Difference]: Start difference. First operand 1872 states and 2267 transitions. Second operand 7 states. [2020-10-12 13:57:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:02,262 INFO L93 Difference]: Finished difference Result 3588 states and 4411 transitions. [2020-10-12 13:57:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:57:02,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 496 [2020-10-12 13:57:02,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:02,271 INFO L225 Difference]: With dead ends: 3588 [2020-10-12 13:57:02,271 INFO L226 Difference]: Without dead ends: 1904 [2020-10-12 13:57:02,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:57:02,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2020-10-12 13:57:02,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1872. [2020-10-12 13:57:02,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1872 states. [2020-10-12 13:57:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2257 transitions. [2020-10-12 13:57:02,315 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2257 transitions. Word has length 496 [2020-10-12 13:57:02,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:02,315 INFO L479 AbstractCegarLoop]: Abstraction has 1872 states and 2257 transitions. [2020-10-12 13:57:02,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:57:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2257 transitions. [2020-10-12 13:57:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-10-12 13:57:02,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:02,321 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:02,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:57:02,322 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:02,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1678257126, now seen corresponding path program 1 times [2020-10-12 13:57:02,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:02,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469783151] [2020-10-12 13:57:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:02,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:03,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:05,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:05,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 515 [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 306 [2020-10-12 13:57:07,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 13:57:07,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:07,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:07,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:07,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:07,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:07,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:57:07,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:07,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:07,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:07,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:07,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:07,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:57:07,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:07,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:07,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:07,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:57:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:57:07,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 13:57:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:07,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-10-12 13:57:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:07,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:08,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:57:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:08,329 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-12 13:57:08,478 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 13:57:08,662 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 13:57:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-12 13:57:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:08,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:08,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:08,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:57:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 365 proven. 73 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2020-10-12 13:57:09,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469783151] [2020-10-12 13:57:09,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:09,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:57:09,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6983639] [2020-10-12 13:57:09,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:57:09,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:09,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:57:09,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:57:09,261 INFO L87 Difference]: Start difference. First operand 1872 states and 2257 transitions. Second operand 10 states. [2020-10-12 13:57:10,764 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-12 13:57:11,524 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-12 13:57:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:12,542 INFO L93 Difference]: Finished difference Result 3566 states and 4356 transitions. [2020-10-12 13:57:12,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 13:57:12,543 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 497 [2020-10-12 13:57:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:12,551 INFO L225 Difference]: With dead ends: 3566 [2020-10-12 13:57:12,552 INFO L226 Difference]: Without dead ends: 1976 [2020-10-12 13:57:12,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 13:57:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2020-10-12 13:57:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1868. [2020-10-12 13:57:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1868 states. [2020-10-12 13:57:12,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2029 transitions. [2020-10-12 13:57:12,591 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2029 transitions. Word has length 497 [2020-10-12 13:57:12,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:12,591 INFO L479 AbstractCegarLoop]: Abstraction has 1868 states and 2029 transitions. [2020-10-12 13:57:12,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:57:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2029 transitions. [2020-10-12 13:57:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2020-10-12 13:57:12,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:12,598 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 13:57:12,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:57:12,598 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:12,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:12,599 INFO L82 PathProgramCache]: Analyzing trace with hash -381167022, now seen corresponding path program 1 times [2020-10-12 13:57:12,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:12,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495760214] [2020-10-12 13:57:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:13,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:13,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:15,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:15,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:17,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:17,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 619 [2020-10-12 13:57:17,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:57:17,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 13:57:17,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:17,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 13:57:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 13:57:17,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:17,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:17,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:17,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:17,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:17,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:17,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:17,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:17,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:17,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:17,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:17,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:17,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:17,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:17,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:17,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:17,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:17,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:17,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:17,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:17,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:17,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 13:57:17,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 13:57:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:18,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 13:57:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:18,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:18,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:18,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:18,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-12 13:57:18,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:18,848 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-10-12 13:57:19,089 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-10-12 13:57:19,339 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2020-10-12 13:57:19,592 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-12 13:57:19,844 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2020-10-12 13:57:20,111 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-12 13:57:20,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-12 13:57:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:20,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:20,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 402 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-10-12 13:57:22,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495760214] [2020-10-12 13:57:22,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:22,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:22,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82547559] [2020-10-12 13:57:22,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:22,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:22,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:22,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:22,396 INFO L87 Difference]: Start difference. First operand 1868 states and 2029 transitions. Second operand 13 states. [2020-10-12 13:57:23,195 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2020-10-12 13:57:23,394 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-10-12 13:57:23,717 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2020-10-12 13:57:23,954 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2020-10-12 13:57:24,121 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-10-12 13:57:24,399 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 13:57:24,871 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2020-10-12 13:57:25,468 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2020-10-12 13:57:26,008 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-12 13:57:26,236 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2020-10-12 13:57:26,579 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 61 [2020-10-12 13:57:26,878 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 65 [2020-10-12 13:57:27,305 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 65 [2020-10-12 13:57:27,725 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 65 [2020-10-12 13:57:28,136 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 83 [2020-10-12 13:57:28,733 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 90 [2020-10-12 13:57:28,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:28,973 INFO L93 Difference]: Finished difference Result 3738 states and 4083 transitions. [2020-10-12 13:57:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:57:28,974 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 601 [2020-10-12 13:57:28,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:28,981 INFO L225 Difference]: With dead ends: 3738 [2020-10-12 13:57:28,981 INFO L226 Difference]: Without dead ends: 1908 [2020-10-12 13:57:28,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:57:28,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2020-10-12 13:57:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1795. [2020-10-12 13:57:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1795 states. [2020-10-12 13:57:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 1957 transitions. [2020-10-12 13:57:29,025 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 1957 transitions. Word has length 601 [2020-10-12 13:57:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:29,026 INFO L479 AbstractCegarLoop]: Abstraction has 1795 states and 1957 transitions. [2020-10-12 13:57:29,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:57:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 1957 transitions. [2020-10-12 13:57:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-12 13:57:29,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:29,032 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:29,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:57:29,033 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:29,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:29,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1705632483, now seen corresponding path program 1 times [2020-10-12 13:57:29,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:29,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954799410] [2020-10-12 13:57:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:29,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:30,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:31,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:31,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 626 [2020-10-12 13:57:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-12 13:57:34,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 13:57:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 13:57:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:34,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:34,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:34,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:57:34,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:34,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:57:34,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:34,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:34,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:34,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:34,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:34,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:57:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:34,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:34,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:34,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:34,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:34,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:35,404 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-12 13:57:35,673 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2020-10-12 13:57:35,954 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2020-10-12 13:57:36,252 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2020-10-12 13:57:36,585 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2020-10-12 13:57:36,945 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2020-10-12 13:57:37,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-12 13:57:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:37,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:37,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:37,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:37,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:37,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:37,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:37,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 409 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-10-12 13:57:39,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954799410] [2020-10-12 13:57:39,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:39,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:39,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260567030] [2020-10-12 13:57:39,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:39,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:39,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:39,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:39,407 INFO L87 Difference]: Start difference. First operand 1795 states and 1957 transitions. Second operand 13 states. [2020-10-12 13:57:40,173 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-12 13:57:40,811 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2020-10-12 13:57:41,166 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2020-10-12 13:57:41,416 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2020-10-12 13:57:41,742 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2020-10-12 13:57:42,078 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 97 [2020-10-12 13:57:42,434 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2020-10-12 13:57:43,254 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2020-10-12 13:57:43,829 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 59 [2020-10-12 13:57:44,201 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2020-10-12 13:57:44,471 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 66 [2020-10-12 13:57:44,789 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2020-10-12 13:57:45,137 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 76 [2020-10-12 13:57:45,574 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2020-10-12 13:57:45,972 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 102 [2020-10-12 13:57:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:46,261 INFO L93 Difference]: Finished difference Result 3594 states and 3946 transitions. [2020-10-12 13:57:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:57:46,262 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 608 [2020-10-12 13:57:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:46,268 INFO L225 Difference]: With dead ends: 3594 [2020-10-12 13:57:46,268 INFO L226 Difference]: Without dead ends: 1964 [2020-10-12 13:57:46,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:57:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2020-10-12 13:57:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1956. [2020-10-12 13:57:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2020-10-12 13:57:46,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2125 transitions. [2020-10-12 13:57:46,310 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2125 transitions. Word has length 608 [2020-10-12 13:57:46,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:46,311 INFO L479 AbstractCegarLoop]: Abstraction has 1956 states and 2125 transitions. [2020-10-12 13:57:46,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:57:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2125 transitions. [2020-10-12 13:57:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2020-10-12 13:57:46,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:46,318 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 13:57:46,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 13:57:46,318 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1188156925, now seen corresponding path program 1 times [2020-10-12 13:57:46,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:46,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95988558] [2020-10-12 13:57:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:46,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:47,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:49,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 642 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 13:57:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:51,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:51,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:51,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:51,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:51,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:51,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:51,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:51,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:51,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:57:51,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 13:57:51,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 13:57:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:51,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-12 13:57:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:52,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:52,935 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-10-12 13:57:53,168 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2020-10-12 13:57:53,397 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2020-10-12 13:57:53,652 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-10-12 13:57:53,914 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-10-12 13:57:54,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-12 13:57:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:54,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:54,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:54,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:54,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 425 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-10-12 13:57:55,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95988558] [2020-10-12 13:57:55,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:55,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:55,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886298972] [2020-10-12 13:57:55,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:55,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:55,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:55,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:55,812 INFO L87 Difference]: Start difference. First operand 1956 states and 2125 transitions. Second operand 13 states. [2020-10-12 13:57:56,614 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 13:57:56,947 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2020-10-12 13:57:57,426 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2020-10-12 13:57:57,747 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-10-12 13:57:58,145 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2020-10-12 13:57:58,562 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-10-12 13:57:58,958 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 101 [2020-10-12 13:57:59,425 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-12 13:57:59,772 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2020-10-12 13:58:00,280 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-10-12 13:58:00,566 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2020-10-12 13:58:01,008 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2020-10-12 13:58:01,377 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-12 13:58:01,778 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2020-10-12 13:58:02,165 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 73 [2020-10-12 13:58:02,844 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2020-10-12 13:58:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:02,904 INFO L93 Difference]: Finished difference Result 3916 states and 4285 transitions. [2020-10-12 13:58:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 13:58:02,905 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 624 [2020-10-12 13:58:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:02,911 INFO L225 Difference]: With dead ends: 3916 [2020-10-12 13:58:02,911 INFO L226 Difference]: Without dead ends: 1962 [2020-10-12 13:58:02,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2020-10-12 13:58:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-12 13:58:02,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1956. [2020-10-12 13:58:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2020-10-12 13:58:02,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2115 transitions. [2020-10-12 13:58:02,959 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2115 transitions. Word has length 624 [2020-10-12 13:58:02,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:02,960 INFO L479 AbstractCegarLoop]: Abstraction has 1956 states and 2115 transitions. [2020-10-12 13:58:02,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2115 transitions. [2020-10-12 13:58:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-10-12 13:58:02,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:02,972 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:58:02,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 13:58:02,972 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:02,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:02,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1727324773, now seen corresponding path program 1 times [2020-10-12 13:58:02,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:02,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707424407] [2020-10-12 13:58:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:03,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:03,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:04,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 686 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 13:58:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:08,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:58:08,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:08,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:08,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:58:08,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:08,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 13:58:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:58:08,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:09,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:09,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:09,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:09,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-12 13:58:09,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:09,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 13:58:09,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:09,571 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2020-10-12 13:58:09,770 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 13:58:09,961 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-12 13:58:10,166 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-12 13:58:10,397 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 13:58:10,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 13:58:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:10,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:10,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:10,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:10,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-12 13:58:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:10,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:10,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:10,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:10,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:58:10,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:10,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 294 proven. 247 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-10-12 13:58:12,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707424407] [2020-10-12 13:58:12,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:12,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:12,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533604234] [2020-10-12 13:58:12,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:12,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:12,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:12,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:12,168 INFO L87 Difference]: Start difference. First operand 1956 states and 2115 transitions. Second operand 13 states. [2020-10-12 13:58:13,321 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 13:58:13,498 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 13:58:13,848 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2020-10-12 13:58:14,172 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-12 13:58:14,589 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2020-10-12 13:58:14,817 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-12 13:58:15,210 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 88 [2020-10-12 13:58:16,630 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-12 13:58:16,829 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 13:58:17,216 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2020-10-12 13:58:17,632 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2020-10-12 13:58:17,873 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2020-10-12 13:58:18,249 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 72 [2020-10-12 13:58:18,592 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2020-10-12 13:58:19,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:19,067 INFO L93 Difference]: Finished difference Result 3916 states and 4246 transitions. [2020-10-12 13:58:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:58:19,072 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 668 [2020-10-12 13:58:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:19,078 INFO L225 Difference]: With dead ends: 3916 [2020-10-12 13:58:19,079 INFO L226 Difference]: Without dead ends: 2083 [2020-10-12 13:58:19,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:58:19,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2020-10-12 13:58:19,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2073. [2020-10-12 13:58:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-12 13:58:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2234 transitions. [2020-10-12 13:58:19,117 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2234 transitions. Word has length 668 [2020-10-12 13:58:19,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:19,117 INFO L479 AbstractCegarLoop]: Abstraction has 2073 states and 2234 transitions. [2020-10-12 13:58:19,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:19,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2234 transitions. [2020-10-12 13:58:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-10-12 13:58:19,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:19,125 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 13:58:19,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 13:58:19,125 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:19,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:19,126 INFO L82 PathProgramCache]: Analyzing trace with hash 797085478, now seen corresponding path program 1 times [2020-10-12 13:58:19,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:19,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938963183] [2020-10-12 13:58:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:19,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:19,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:20,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:20,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:21,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:21,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 709 [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:24,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:24,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:24,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:24,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:58:24,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:24,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:24,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:24,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:24,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 13:58:24,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:25,377 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-12 13:58:25,551 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 13:58:25,731 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-12 13:58:25,915 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-10-12 13:58:26,102 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-12 13:58:26,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-12 13:58:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:26,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:26,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:26,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:26,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:26,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:26,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:26,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:26,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:26,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:26,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 508 proven. 73 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2020-10-12 13:58:27,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938963183] [2020-10-12 13:58:27,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:27,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:27,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598824985] [2020-10-12 13:58:27,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:27,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:27,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:27,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:27,895 INFO L87 Difference]: Start difference. First operand 2073 states and 2234 transitions. Second operand 13 states. [2020-10-12 13:58:28,608 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 13:58:28,998 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 13:58:29,247 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-12 13:58:29,404 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 13:58:29,588 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 13:58:30,026 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 13:58:30,295 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-12 13:58:30,537 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2020-10-12 13:58:31,384 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 13:58:31,896 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-12 13:58:32,086 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-10-12 13:58:32,298 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 13:58:32,804 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 13:58:33,064 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2020-10-12 13:58:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:33,417 INFO L93 Difference]: Finished difference Result 4142 states and 4482 transitions. [2020-10-12 13:58:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:58:33,417 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 689 [2020-10-12 13:58:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:33,425 INFO L225 Difference]: With dead ends: 4142 [2020-10-12 13:58:33,425 INFO L226 Difference]: Without dead ends: 2252 [2020-10-12 13:58:33,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:58:33,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-12 13:58:33,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2250. [2020-10-12 13:58:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-10-12 13:58:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2414 transitions. [2020-10-12 13:58:33,464 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2414 transitions. Word has length 689 [2020-10-12 13:58:33,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:33,465 INFO L479 AbstractCegarLoop]: Abstraction has 2250 states and 2414 transitions. [2020-10-12 13:58:33,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2414 transitions. [2020-10-12 13:58:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2020-10-12 13:58:33,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:33,474 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-12 13:58:33,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 13:58:33,474 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:33,475 INFO L82 PathProgramCache]: Analyzing trace with hash 64170666, now seen corresponding path program 1 times [2020-10-12 13:58:33,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:33,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518865057] [2020-10-12 13:58:33,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:33,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:33,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:34,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:34,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:38,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 787 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 13:58:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:38,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:38,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:38,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:38,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:38,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:38,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:38,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:38,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:58:38,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:38,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:38,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:38,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:38,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:38,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:38,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:58:38,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:38,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:38,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:38,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:38,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:38,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:38,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:38,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:58:38,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:38,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:38,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:38,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:38,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:38,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:38,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:39,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:39,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:58:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:39,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:58:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:39,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:39,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:39,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:39,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:39,835 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-10-12 13:58:40,050 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-12 13:58:40,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-12 13:58:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:40,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:58:40,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:41,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 586 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-12 13:58:41,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518865057] [2020-10-12 13:58:41,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:41,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:41,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310263801] [2020-10-12 13:58:41,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:41,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:41,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:41,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:41,654 INFO L87 Difference]: Start difference. First operand 2250 states and 2414 transitions. Second operand 13 states. [2020-10-12 13:58:42,749 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-12 13:58:42,929 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 13:58:43,081 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 13:58:43,333 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 13:58:43,560 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-12 13:58:44,324 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-10-12 13:58:44,779 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-10-12 13:58:44,965 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-10-12 13:58:45,141 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 13:58:45,400 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 13:58:45,652 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-12 13:58:46,102 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-12 13:58:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:46,253 INFO L93 Difference]: Finished difference Result 4494 states and 4839 transitions. [2020-10-12 13:58:46,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:58:46,253 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 767 [2020-10-12 13:58:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:46,260 INFO L225 Difference]: With dead ends: 4494 [2020-10-12 13:58:46,261 INFO L226 Difference]: Without dead ends: 2423 [2020-10-12 13:58:46,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:58:46,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2020-10-12 13:58:46,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2421. [2020-10-12 13:58:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2421 states. [2020-10-12 13:58:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 2586 transitions. [2020-10-12 13:58:46,303 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 2586 transitions. Word has length 767 [2020-10-12 13:58:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:46,304 INFO L479 AbstractCegarLoop]: Abstraction has 2421 states and 2586 transitions. [2020-10-12 13:58:46,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 2586 transitions. [2020-10-12 13:58:46,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 867 [2020-10-12 13:58:46,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:46,314 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-12 13:58:46,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 13:58:46,314 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:46,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:46,315 INFO L82 PathProgramCache]: Analyzing trace with hash 224349565, now seen corresponding path program 1 times [2020-10-12 13:58:46,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:46,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686432358] [2020-10-12 13:58:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:46,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:47,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:50,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 888 [2020-10-12 13:58:51,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-12 13:58:51,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-12 13:58:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 13:58:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:51,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:58:51,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:58:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:58:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:58:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:51,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:58:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:51,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:51,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 13:58:51,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:58:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:58:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:52,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:52,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:52,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:53,116 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2020-10-12 13:58:53,374 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2020-10-12 13:58:53,647 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-10-12 13:58:53,946 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-10-12 13:58:54,258 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 13:58:54,581 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 13:58:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-12 13:58:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:55,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:55,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:58:55,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2110 backedges. 703 proven. 73 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2020-10-12 13:58:57,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686432358] [2020-10-12 13:58:57,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:57,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:57,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21872007] [2020-10-12 13:58:57,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:57,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:57,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:57,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:57,715 INFO L87 Difference]: Start difference. First operand 2421 states and 2586 transitions. Second operand 13 states. [2020-10-12 13:58:58,502 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-12 13:58:58,784 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2020-10-12 13:58:59,152 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-10-12 13:58:59,420 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 13:58:59,850 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 13:59:00,205 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 13:59:00,619 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 86 [2020-10-12 13:59:01,146 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-10-12 13:59:01,449 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-12 13:59:02,153 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 54 [2020-10-12 13:59:02,469 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 58 [2020-10-12 13:59:02,839 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 60 [2020-10-12 13:59:03,120 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2020-10-12 13:59:03,599 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2020-10-12 13:59:04,015 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2020-10-12 13:59:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:04,621 INFO L93 Difference]: Finished difference Result 4844 states and 5197 transitions. [2020-10-12 13:59:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:59:04,622 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 866 [2020-10-12 13:59:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:04,629 INFO L225 Difference]: With dead ends: 4844 [2020-10-12 13:59:04,630 INFO L226 Difference]: Without dead ends: 2505 [2020-10-12 13:59:04,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:59:04,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2020-10-12 13:59:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2495. [2020-10-12 13:59:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2495 states. [2020-10-12 13:59:04,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 2661 transitions. [2020-10-12 13:59:04,670 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 2661 transitions. Word has length 866 [2020-10-12 13:59:04,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:04,670 INFO L479 AbstractCegarLoop]: Abstraction has 2495 states and 2661 transitions. [2020-10-12 13:59:04,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:59:04,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 2661 transitions. [2020-10-12 13:59:04,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2020-10-12 13:59:04,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:04,683 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-12 13:59:04,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 13:59:04,683 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:04,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:04,684 INFO L82 PathProgramCache]: Analyzing trace with hash 396249333, now seen corresponding path program 1 times [2020-10-12 13:59:04,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:04,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169674663] [2020-10-12 13:59:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:04,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:05,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 966 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1457 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 13:59:06,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:06,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:59:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:06,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:06,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:06,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:06,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 13:59:06,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 13:59:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:06,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:06,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:06,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:06,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 13:59:06,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:59:06,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:07,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 623 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 13:59:07,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169674663] [2020-10-12 13:59:07,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:07,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:07,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542848592] [2020-10-12 13:59:07,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:07,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:07,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:07,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:07,471 INFO L87 Difference]: Start difference. First operand 2495 states and 2661 transitions. Second operand 7 states. [2020-10-12 13:59:09,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:09,142 INFO L93 Difference]: Finished difference Result 4998 states and 5342 transitions. [2020-10-12 13:59:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:59:09,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 942 [2020-10-12 13:59:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:09,149 INFO L225 Difference]: With dead ends: 4998 [2020-10-12 13:59:09,149 INFO L226 Difference]: Without dead ends: 2503 [2020-10-12 13:59:09,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:59:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2020-10-12 13:59:09,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2497. [2020-10-12 13:59:09,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2497 states. [2020-10-12 13:59:09,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 2627 transitions. [2020-10-12 13:59:09,195 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 2627 transitions. Word has length 942 [2020-10-12 13:59:09,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:09,196 INFO L479 AbstractCegarLoop]: Abstraction has 2497 states and 2627 transitions. [2020-10-12 13:59:09,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 2627 transitions. [2020-10-12 13:59:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2020-10-12 13:59:09,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:09,208 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-12 13:59:09,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 13:59:09,209 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:09,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:09,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1877832141, now seen corresponding path program 1 times [2020-10-12 13:59:09,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:09,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733534180] [2020-10-12 13:59:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:09,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:09,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:12,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 978 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3493 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-12 13:59:12,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:12,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:12,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:12,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:12,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:12,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:59:12,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:12,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:12,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:12,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:12,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:12,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:12,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:12,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:12,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:12,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:13,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:13,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:13,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:13,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:13,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:13,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:13,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:59:13,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:13,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:13,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:59:13,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:59:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:13,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-12 13:59:13,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:59:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:59:13,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:13,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:13,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:59:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:59:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 13:59:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2721 backedges. 1270 proven. 85 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-12 13:59:13,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733534180] [2020-10-12 13:59:13,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:13,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:59:13,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346120558] [2020-10-12 13:59:13,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:59:13,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:13,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:59:13,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:59:13,945 INFO L87 Difference]: Start difference. First operand 2497 states and 2627 transitions. Second operand 10 states. [2020-10-12 13:59:16,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:16,710 INFO L93 Difference]: Finished difference Result 5867 states and 6320 transitions. [2020-10-12 13:59:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 13:59:16,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 954 [2020-10-12 13:59:16,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:16,719 INFO L225 Difference]: With dead ends: 5867 [2020-10-12 13:59:16,720 INFO L226 Difference]: Without dead ends: 3560 [2020-10-12 13:59:16,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-12 13:59:16,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2020-10-12 13:59:16,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3247. [2020-10-12 13:59:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3247 states. [2020-10-12 13:59:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 3479 transitions. [2020-10-12 13:59:16,779 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 3479 transitions. Word has length 954 [2020-10-12 13:59:16,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:16,780 INFO L479 AbstractCegarLoop]: Abstraction has 3247 states and 3479 transitions. [2020-10-12 13:59:16,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:59:16,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 3479 transitions. [2020-10-12 13:59:16,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1173 [2020-10-12 13:59:16,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:16,803 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:16,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 13:59:16,803 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:16,804 INFO L82 PathProgramCache]: Analyzing trace with hash -670467711, now seen corresponding path program 1 times [2020-10-12 13:59:16,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:16,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162319645] [2020-10-12 13:59:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:17,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:17,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1200 [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-12 13:59:22,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:22,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:22,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:22,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:22,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:22,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:22,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:22,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:22,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:22,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:22,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:22,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:22,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 13:59:22,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:22,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:22,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:59:22,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:22,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-12 13:59:22,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:59:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:59:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:22,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:22,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:22,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:22,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 13:59:22,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:59:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:23,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:23,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:23,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:23,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:59:23,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:23,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 13:59:23,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:23,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:23,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:23,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:59:23,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:23,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-12 13:59:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:23,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:23,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:23,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:23,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:23,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:59:23,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:59:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4377 backedges. 2032 proven. 542 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2020-10-12 13:59:24,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162319645] [2020-10-12 13:59:24,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:24,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 13:59:24,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660707585] [2020-10-12 13:59:24,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 13:59:24,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:24,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 13:59:24,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:59:24,691 INFO L87 Difference]: Start difference. First operand 3247 states and 3479 transitions. Second operand 11 states. [2020-10-12 13:59:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:27,793 INFO L93 Difference]: Finished difference Result 6508 states and 6994 transitions. [2020-10-12 13:59:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 13:59:27,800 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1172 [2020-10-12 13:59:27,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:27,809 INFO L225 Difference]: With dead ends: 6508 [2020-10-12 13:59:27,810 INFO L226 Difference]: Without dead ends: 3451 [2020-10-12 13:59:27,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-10-12 13:59:27,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2020-10-12 13:59:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3245. [2020-10-12 13:59:27,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3245 states. [2020-10-12 13:59:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 3468 transitions. [2020-10-12 13:59:27,866 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 3468 transitions. Word has length 1172 [2020-10-12 13:59:27,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:27,867 INFO L479 AbstractCegarLoop]: Abstraction has 3245 states and 3468 transitions. [2020-10-12 13:59:27,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 13:59:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 3468 transitions. [2020-10-12 13:59:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2020-10-12 13:59:27,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:27,884 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:27,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 13:59:27,885 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:27,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:27,885 INFO L82 PathProgramCache]: Analyzing trace with hash -335204783, now seen corresponding path program 1 times [2020-10-12 13:59:27,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:27,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512932488] [2020-10-12 13:59:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:28,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1240 [2020-10-12 13:59:31,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:31,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2929 [2020-10-12 13:59:31,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1221 [2020-10-12 13:59:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 13:59:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:31,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:31,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:31,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:59:31,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:31,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:31,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:31,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:59:31,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:31,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 13:59:31,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:31,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:31,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:31,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:59:31,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:31,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:59:31,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:31,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:59:31,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:59:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4537 backedges. 137 proven. 10 refuted. 0 times theorem prover too weak. 4390 trivial. 0 not checked. [2020-10-12 13:59:32,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512932488] [2020-10-12 13:59:32,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:32,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:59:32,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268965505] [2020-10-12 13:59:32,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:59:32,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:32,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:59:32,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:59:32,335 INFO L87 Difference]: Start difference. First operand 3245 states and 3468 transitions. Second operand 5 states. [2020-10-12 13:59:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:33,395 INFO L93 Difference]: Finished difference Result 3435 states and 3669 transitions. [2020-10-12 13:59:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:59:33,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1212 [2020-10-12 13:59:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:33,406 INFO L225 Difference]: With dead ends: 3435 [2020-10-12 13:59:33,406 INFO L226 Difference]: Without dead ends: 3433 [2020-10-12 13:59:33,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:59:33,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2020-10-12 13:59:33,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3245. [2020-10-12 13:59:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3245 states. [2020-10-12 13:59:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 3468 transitions. [2020-10-12 13:59:33,457 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 3468 transitions. Word has length 1212 [2020-10-12 13:59:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:33,458 INFO L479 AbstractCegarLoop]: Abstraction has 3245 states and 3468 transitions. [2020-10-12 13:59:33,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:59:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 3468 transitions. [2020-10-12 13:59:33,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-12 13:59:33,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:33,479 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:33,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 13:59:33,480 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1038386243, now seen corresponding path program 1 times [2020-10-12 13:59:33,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:33,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584598108] [2020-10-12 13:59:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:33,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:34,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1246 [2020-10-12 13:59:34,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1112 [2020-10-12 13:59:34,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:59:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:59:34,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:34,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:34,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:34,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:34,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:35,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:35,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:35,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:35,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:35,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 13:59:35,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:35,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:35,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:35,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:59:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:35,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:35,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:35,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 13:59:35,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 13:59:35,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 13:59:35,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:36,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4579 backedges. 934 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-12 13:59:36,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584598108] [2020-10-12 13:59:36,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:36,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:36,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005033071] [2020-10-12 13:59:36,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:36,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:36,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:36,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:36,160 INFO L87 Difference]: Start difference. First operand 3245 states and 3468 transitions. Second operand 7 states. [2020-10-12 13:59:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:37,603 INFO L93 Difference]: Finished difference Result 7574 states and 8141 transitions. [2020-10-12 13:59:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:59:37,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1218 [2020-10-12 13:59:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:37,615 INFO L225 Difference]: With dead ends: 7574 [2020-10-12 13:59:37,615 INFO L226 Difference]: Without dead ends: 4519 [2020-10-12 13:59:37,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:59:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2020-10-12 13:59:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 3700. [2020-10-12 13:59:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3700 states. [2020-10-12 13:59:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 3963 transitions. [2020-10-12 13:59:37,681 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 3963 transitions. Word has length 1218 [2020-10-12 13:59:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:37,683 INFO L479 AbstractCegarLoop]: Abstraction has 3700 states and 3963 transitions. [2020-10-12 13:59:37,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 3963 transitions. [2020-10-12 13:59:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1325 [2020-10-12 13:59:37,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:37,709 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:37,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 13:59:37,709 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:37,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1227993631, now seen corresponding path program 1 times [2020-10-12 13:59:37,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:37,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766464576] [2020-10-12 13:59:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:40,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:42,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1354 [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-12 13:59:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:43,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:43,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:43,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:59:43,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:43,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 13:59:43,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:43,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:59:43,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:43,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 13:59:43,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:43,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:43,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:43,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:43,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:59:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:43,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:59:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 13:59:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:43,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:44,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:44,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:59:44,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:59:44,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:59:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5551 backedges. 1780 proven. 33 refuted. 0 times theorem prover too weak. 3738 trivial. 0 not checked. [2020-10-12 13:59:44,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766464576] [2020-10-12 13:59:44,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:44,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:44,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965349021] [2020-10-12 13:59:44,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:44,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:44,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:44,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:44,825 INFO L87 Difference]: Start difference. First operand 3700 states and 3963 transitions. Second operand 7 states. [2020-10-12 13:59:46,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:46,584 INFO L93 Difference]: Finished difference Result 8745 states and 9428 transitions. [2020-10-12 13:59:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:59:46,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1324 [2020-10-12 13:59:46,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:46,596 INFO L225 Difference]: With dead ends: 8745 [2020-10-12 13:59:46,596 INFO L226 Difference]: Without dead ends: 5235 [2020-10-12 13:59:46,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:59:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2020-10-12 13:59:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 4416. [2020-10-12 13:59:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4416 states. [2020-10-12 13:59:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4416 states to 4416 states and 4762 transitions. [2020-10-12 13:59:46,675 INFO L78 Accepts]: Start accepts. Automaton has 4416 states and 4762 transitions. Word has length 1324 [2020-10-12 13:59:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:46,677 INFO L479 AbstractCegarLoop]: Abstraction has 4416 states and 4762 transitions. [2020-10-12 13:59:46,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4416 states and 4762 transitions. [2020-10-12 13:59:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1513 [2020-10-12 13:59:46,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:46,708 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-12 13:59:46,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 13:59:46,708 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:46,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1947196727, now seen corresponding path program 1 times [2020-10-12 13:59:46,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:46,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700214612] [2020-10-12 13:59:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1544 [2020-10-12 13:59:52,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:52,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 13:59:52,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:59:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-12 13:59:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:52,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:52,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:52,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:52,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:59:52,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:52,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:59:52,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:52,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 13:59:52,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:52,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:52,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:52,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:59:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:52,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:52,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-12 13:59:52,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:53,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 13:59:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:53,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:59:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:53,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1409 [2020-10-12 13:59:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:53,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:53,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:53,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 13:59:53,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:53,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 13:59:53,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 13:59:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0