/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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:56:45,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:56:45,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:56:45,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:56:45,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:56:45,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:56:45,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:56:45,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:56:45,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:56:45,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:56:45,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:56:45,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:56:45,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:56:45,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:56:45,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:56:45,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:56:45,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:56:45,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:56:45,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:56:45,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:56:45,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:56:45,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:56:45,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:56:45,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:56:45,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:56:45,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:56:45,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:56:45,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:56:45,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:56:45,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:56:45,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:56:45,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:56:45,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:56:45,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:56:45,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:56:45,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:56:45,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:56:45,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:56:45,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:56:45,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:56:45,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:56:45,227 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 13:56:45,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:56:45,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:56:45,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:56:45,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:56:45,252 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:56:45,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:56:45,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:56:45,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:56:45,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:56:45,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:56:45,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:56:45,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:56:45,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:56:45,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:56:45,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:56:45,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:56:45,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:56:45,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:56:45,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:56:45,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:56:45,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:56:45,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:56:45,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:56:45,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:56:45,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:56:45,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:56:45,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:56:45,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:56:45,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:56:45,257 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 13:56:45,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:56:45,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:56:45,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:56:45,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:56:45,597 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:56:45,598 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label26.c [2020-10-12 13:56:45,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c8779785/5e49d5e415e2447e9be50823def0cdaf/FLAG8c99f4d6f [2020-10-12 13:56:46,279 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:56:46,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label26.c [2020-10-12 13:56:46,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c8779785/5e49d5e415e2447e9be50823def0cdaf/FLAG8c99f4d6f [2020-10-12 13:56:46,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c8779785/5e49d5e415e2447e9be50823def0cdaf [2020-10-12 13:56:46,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:56:46,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:56:46,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:56:46,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:56:46,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:56:46,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:56:46" (1/1) ... [2020-10-12 13:56:46,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbac012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:46, skipping insertion in model container [2020-10-12 13:56:46,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:56:46" (1/1) ... [2020-10-12 13:56:46,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:56:46,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:56:47,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:56:47,242 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:56:47,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:56:47,608 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:56:47,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47 WrapperNode [2020-10-12 13:56:47,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:56:47,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:56:47,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:56:47,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:56:47,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (1/1) ... [2020-10-12 13:56:47,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:56:47,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:56:47,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:56:47,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:56:47,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (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 13:56:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:56:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:56:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:56:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:56:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:56:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:56:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:56:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:56:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:56:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:56:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:56:49,260 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:56:49,260 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:56:49,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:56:49 BoogieIcfgContainer [2020-10-12 13:56:49,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:56:49,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:56:49,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:56:49,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:56:49,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:56:46" (1/3) ... [2020-10-12 13:56:49,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7e25be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:56:49, skipping insertion in model container [2020-10-12 13:56:49,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:56:47" (2/3) ... [2020-10-12 13:56:49,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7e25be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:56:49, skipping insertion in model container [2020-10-12 13:56:49,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:56:49" (3/3) ... [2020-10-12 13:56:49,275 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label26.c [2020-10-12 13:56:49,286 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:56:49,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:56:49,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:56:49,336 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:56:49,336 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:56:49,337 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:56:49,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:56:49,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:56:49,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:56:49,337 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:56:49,337 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:56:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 13:56:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-12 13:56:49,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:49,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:49,374 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:49,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:49,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1385105165, now seen corresponding path program 1 times [2020-10-12 13:56:49,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:49,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957209636] [2020-10-12 13:56:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:49,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:50,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:50,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:56:50,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:50,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-12 13:56:50,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:56:50,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 13:56:50,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:50,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:50,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:50,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:50,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:50,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:56:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:50,300 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 13:56:50,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957209636] [2020-10-12 13:56:50,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:50,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 13:56:50,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723133369] [2020-10-12 13:56:50,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:56:50,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:50,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:56:50,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:56:50,329 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-12 13:56:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:52,989 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-10-12 13:56:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:56:52,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-10-12 13:56:52,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:53,028 INFO L225 Difference]: With dead ends: 886 [2020-10-12 13:56:53,028 INFO L226 Difference]: Without dead ends: 564 [2020-10-12 13:56:53,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-12 13:56:53,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-12 13:56:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-12 13:56:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 855 transitions. [2020-10-12 13:56:53,147 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 855 transitions. Word has length 72 [2020-10-12 13:56:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:53,148 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 855 transitions. [2020-10-12 13:56:53,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:56:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 855 transitions. [2020-10-12 13:56:53,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-12 13:56:53,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:53,155 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:56:53,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:56:53,159 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:53,160 INFO L82 PathProgramCache]: Analyzing trace with hash 799672317, now seen corresponding path program 1 times [2020-10-12 13:56:53,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:53,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248934615] [2020-10-12 13:56:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:53,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:53,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 13:56:54,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:56:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-10-12 13:56:54,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:56:54,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:56:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:56:54,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:56:54,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:54,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:54,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:54,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:56:54,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:56:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 13:56:54,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:54,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:54,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:56:54,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:54,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 13:56:54,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:56:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:56:54,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248934615] [2020-10-12 13:56:54,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:56:54,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:56:54,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833845104] [2020-10-12 13:56:54,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:54,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:54,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:54,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:54,825 INFO L87 Difference]: Start difference. First operand 560 states and 855 transitions. Second operand 7 states. [2020-10-12 13:56:56,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:56,807 INFO L93 Difference]: Finished difference Result 1704 states and 2667 transitions. [2020-10-12 13:56:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:56:56,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-12 13:56:56,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:56,818 INFO L225 Difference]: With dead ends: 1704 [2020-10-12 13:56:56,818 INFO L226 Difference]: Without dead ends: 1150 [2020-10-12 13:56:56,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 13:56:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2020-10-12 13:56:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 942. [2020-10-12 13:56:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-10-12 13:56:56,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1311 transitions. [2020-10-12 13:56:56,875 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1311 transitions. Word has length 141 [2020-10-12 13:56:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:56,876 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1311 transitions. [2020-10-12 13:56:56,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:56,876 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1311 transitions. [2020-10-12 13:56:56,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-12 13:56:56,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:56,882 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:56,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:56:56,882 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:56,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1537507775, now seen corresponding path program 1 times [2020-10-12 13:56:56,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:56,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538569424] [2020-10-12 13:56:56,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:56,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 13:57:01,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:01,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-12 13:57:01,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:57:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 13:57:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 13:57:01,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:02,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:02,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:02,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:02,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:57:02,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:02,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:02,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:02,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:57:02,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:57:02,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 13:57:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:02,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 13:57:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:02,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:02,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:02,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:57:02,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:02,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-12 13:57:02,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:02,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:57:02,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:02,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:57:02,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:57:02,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538569424] [2020-10-12 13:57:02,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:02,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:57:02,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99227103] [2020-10-12 13:57:02,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:57:02,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:02,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:57:02,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:57:02,905 INFO L87 Difference]: Start difference. First operand 942 states and 1311 transitions. Second operand 10 states. [2020-10-12 13:57:05,180 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-12 13:57:05,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:05,703 INFO L93 Difference]: Finished difference Result 2209 states and 3040 transitions. [2020-10-12 13:57:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 13:57:05,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 228 [2020-10-12 13:57:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:05,713 INFO L225 Difference]: With dead ends: 2209 [2020-10-12 13:57:05,713 INFO L226 Difference]: Without dead ends: 1101 [2020-10-12 13:57:05,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 13:57:05,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2020-10-12 13:57:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 938. [2020-10-12 13:57:05,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-12 13:57:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1079 transitions. [2020-10-12 13:57:05,771 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1079 transitions. Word has length 228 [2020-10-12 13:57:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:05,772 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1079 transitions. [2020-10-12 13:57:05,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:57:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1079 transitions. [2020-10-12 13:57:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-12 13:57:05,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:05,784 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:05,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:57:05,785 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash -935486046, now seen corresponding path program 1 times [2020-10-12 13:57:05,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:05,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041103229] [2020-10-12 13:57:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:06,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:06,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:08,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:10,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:10,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 448 [2020-10-12 13:57:10,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:10,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 13:57:10,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:10,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:10,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-12 13:57:10,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 13:57:10,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:11,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:57:11,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:11,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 13:57:11,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:57:11,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:57:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:11,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:11,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-12 13:57:11,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,708 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 13:57:12,882 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 13:57:13,067 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-12 13:57:13,262 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-12 13:57:13,490 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 13:57:13,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-12 13:57:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:13,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:13,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:13,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:13,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:57:13,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 305 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-12 13:57:15,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041103229] [2020-10-12 13:57:15,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:15,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 13:57:15,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483472271] [2020-10-12 13:57:15,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 13:57:15,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:15,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 13:57:15,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 13:57:15,379 INFO L87 Difference]: Start difference. First operand 938 states and 1079 transitions. Second operand 14 states. [2020-10-12 13:57:16,316 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 13:57:16,577 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-12 13:57:17,029 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 88 [2020-10-12 13:57:17,574 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2020-10-12 13:57:18,146 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2020-10-12 13:57:18,452 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-12 13:57:19,022 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 97 [2020-10-12 13:57:19,716 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-10-12 13:57:19,935 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-10-12 13:57:20,184 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2020-10-12 13:57:20,515 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2020-10-12 13:57:20,887 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 64 [2020-10-12 13:57:21,118 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 69 [2020-10-12 13:57:21,478 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 72 [2020-10-12 13:57:22,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:22,118 INFO L93 Difference]: Finished difference Result 2072 states and 2386 transitions. [2020-10-12 13:57:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:57:22,119 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 434 [2020-10-12 13:57:22,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:22,125 INFO L225 Difference]: With dead ends: 2072 [2020-10-12 13:57:22,125 INFO L226 Difference]: Without dead ends: 1073 [2020-10-12 13:57:22,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=271, Invalid=785, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 13:57:22,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-10-12 13:57:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1057. [2020-10-12 13:57:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-10-12 13:57:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1205 transitions. [2020-10-12 13:57:22,160 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1205 transitions. Word has length 434 [2020-10-12 13:57:22,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:22,161 INFO L479 AbstractCegarLoop]: Abstraction has 1057 states and 1205 transitions. [2020-10-12 13:57:22,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 13:57:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1205 transitions. [2020-10-12 13:57:22,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-12 13:57:22,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:22,170 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:22,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:57:22,171 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:22,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:22,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1971825746, now seen corresponding path program 1 times [2020-10-12 13:57:22,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:22,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420154997] [2020-10-12 13:57:22,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:22,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:22,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:22,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:22,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 13:57:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,469 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-12 13:57:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:27,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:57:27,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:27,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:57:27,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 13:57:27,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 13:57:27,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 13:57:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:27,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:28,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:28,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:28,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-12 13:57:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:29,218 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-12 13:57:29,371 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2020-10-12 13:57:29,573 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-12 13:57:29,756 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-10-12 13:57:29,952 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-12 13:57:30,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-12 13:57:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:30,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:30,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:30,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:30,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:30,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:57:30,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:30,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 329 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-12 13:57:31,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420154997] [2020-10-12 13:57:31,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:31,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:31,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327939417] [2020-10-12 13:57:31,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:31,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:31,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:31,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:31,523 INFO L87 Difference]: Start difference. First operand 1057 states and 1205 transitions. Second operand 13 states. [2020-10-12 13:57:32,123 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-12 13:57:32,383 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2020-10-12 13:57:32,717 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 13:57:32,985 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2020-10-12 13:57:33,397 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2020-10-12 13:57:33,952 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-12 13:57:34,317 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2020-10-12 13:57:34,810 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-10-12 13:57:35,071 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2020-10-12 13:57:35,478 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 56 [2020-10-12 13:57:35,774 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 60 [2020-10-12 13:57:36,105 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2020-10-12 13:57:36,382 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 66 [2020-10-12 13:57:36,661 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2020-10-12 13:57:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:37,095 INFO L93 Difference]: Finished difference Result 2308 states and 2633 transitions. [2020-10-12 13:57:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:57:37,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 458 [2020-10-12 13:57:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:37,111 INFO L225 Difference]: With dead ends: 2308 [2020-10-12 13:57:37,112 INFO L226 Difference]: Without dead ends: 1069 [2020-10-12 13:57:37,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:57:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2020-10-12 13:57:37,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1055. [2020-10-12 13:57:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2020-10-12 13:57:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1191 transitions. [2020-10-12 13:57:37,145 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1191 transitions. Word has length 458 [2020-10-12 13:57:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:37,146 INFO L479 AbstractCegarLoop]: Abstraction has 1055 states and 1191 transitions. [2020-10-12 13:57:37,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:57:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1191 transitions. [2020-10-12 13:57:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2020-10-12 13:57:37,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:37,159 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:57:37,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:57:37,159 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:37,160 INFO L82 PathProgramCache]: Analyzing trace with hash -768423444, now seen corresponding path program 1 times [2020-10-12 13:57:37,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:37,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590536921] [2020-10-12 13:57:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:37,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:37,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:37,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:39,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:40,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 567 [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 238 [2020-10-12 13:57:42,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 13:57:42,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:42,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:42,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:42,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:42,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:42,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:42,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:42,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:42,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:42,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:42,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:57:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:57:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:42,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 13:57:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:57:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:57:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:42,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:43,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:43,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:43,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653 [2020-10-12 13:57:43,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:43,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:43,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:43,898 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-10-12 13:57:44,052 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-10-12 13:57:44,210 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-12 13:57:44,382 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-12 13:57:44,575 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-10-12 13:57:44,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-10-12 13:57:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:44,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:44,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 493 proven. 73 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-12 13:57:45,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590536921] [2020-10-12 13:57:45,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:45,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:45,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891753836] [2020-10-12 13:57:45,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:45,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:45,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:45,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:45,851 INFO L87 Difference]: Start difference. First operand 1055 states and 1191 transitions. Second operand 13 states. [2020-10-12 13:57:46,490 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-12 13:57:47,001 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-12 13:57:47,264 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-12 13:57:47,440 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-12 13:57:47,654 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-12 13:57:47,872 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-10-12 13:57:48,078 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2020-10-12 13:57:48,819 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 13:57:49,324 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 13:57:49,604 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-12 13:57:49,784 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-12 13:57:50,002 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2020-10-12 13:57:50,231 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2020-10-12 13:57:50,549 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-12 13:57:50,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:50,914 INFO L93 Difference]: Finished difference Result 2298 states and 2592 transitions. [2020-10-12 13:57:50,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:57:50,918 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 551 [2020-10-12 13:57:50,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:50,928 INFO L225 Difference]: With dead ends: 2298 [2020-10-12 13:57:50,928 INFO L226 Difference]: Without dead ends: 1224 [2020-10-12 13:57:50,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:57:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-10-12 13:57:50,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1214. [2020-10-12 13:57:50,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1214 states. [2020-10-12 13:57:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1354 transitions. [2020-10-12 13:57:50,975 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1354 transitions. Word has length 551 [2020-10-12 13:57:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:50,976 INFO L479 AbstractCegarLoop]: Abstraction has 1214 states and 1354 transitions. [2020-10-12 13:57:50,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:57:50,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1354 transitions. [2020-10-12 13:57:51,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2020-10-12 13:57:51,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:51,003 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:51,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:57:51,003 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:51,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:51,004 INFO L82 PathProgramCache]: Analyzing trace with hash -810575398, now seen corresponding path program 1 times [2020-10-12 13:57:51,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:51,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891830486] [2020-10-12 13:57:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:51,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:52,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:53,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:56,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 650 [2020-10-12 13:57:56,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 13:57:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 13:57:56,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:57:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 321 [2020-10-12 13:57:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:56,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:56,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:56,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:56,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:56,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:56,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:56,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:56,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:56,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:56,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:56,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:56,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:56,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:56,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:57:56,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:56,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:57:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:56,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:56,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:56,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:56,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:57:56,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:57:56,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:57:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:56,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:56,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:57:56,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 13:57:56,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 13:57:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:56,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 13:57:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:56,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:56,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:56,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:57,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2020-10-12 13:57:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:57,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:57:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:57,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 645 proven. 73 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-12 13:57:58,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891830486] [2020-10-12 13:57:58,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:58,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:57:58,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506486646] [2020-10-12 13:57:58,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:57:58,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:58,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:57:58,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:57:58,747 INFO L87 Difference]: Start difference. First operand 1214 states and 1354 transitions. Second operand 13 states. [2020-10-12 13:57:59,235 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-12 13:57:59,582 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-12 13:57:59,794 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 13:57:59,922 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 13:58:00,068 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 13:58:00,452 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 13:58:00,595 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-12 13:58:00,774 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-10-12 13:58:01,336 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-10-12 13:58:01,700 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-12 13:58:01,843 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-10-12 13:58:02,007 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 13:58:02,418 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-12 13:58:02,585 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2020-10-12 13:58:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:02,955 INFO L93 Difference]: Finished difference Result 2620 states and 2928 transitions. [2020-10-12 13:58:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:58:02,963 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 632 [2020-10-12 13:58:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:02,969 INFO L225 Difference]: With dead ends: 2620 [2020-10-12 13:58:02,969 INFO L226 Difference]: Without dead ends: 1405 [2020-10-12 13:58:02,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:58:02,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2020-10-12 13:58:03,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1393. [2020-10-12 13:58:03,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2020-10-12 13:58:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1539 transitions. [2020-10-12 13:58:03,014 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1539 transitions. Word has length 632 [2020-10-12 13:58:03,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:03,015 INFO L479 AbstractCegarLoop]: Abstraction has 1393 states and 1539 transitions. [2020-10-12 13:58:03,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1539 transitions. [2020-10-12 13:58:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-10-12 13:58:03,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:03,022 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 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, 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] [2020-10-12 13:58:03,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:58:03,023 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:03,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1030234518, now seen corresponding path program 1 times [2020-10-12 13:58:03,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:03,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11070705] [2020-10-12 13:58:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:03,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:03,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 728 [2020-10-12 13:58:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 13:58:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 399 [2020-10-12 13:58:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 13:58:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:08,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:58:08,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:08,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:58:08,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:08,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:08,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:08,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:58:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:08,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:58:08,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:08,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:58:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:08,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:58:08,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-12 13:58:08,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:58:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-12 13:58:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:08,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:08,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:09,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:09,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:09,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-12 13:58:09,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:09,650 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-10-12 13:58:09,796 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-12 13:58:09,964 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 13:58:10,138 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-12 13:58:10,306 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 13:58:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-12 13:58:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:10,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1341 backedges. 723 proven. 73 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 13:58:12,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11070705] [2020-10-12 13:58:12,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:12,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:12,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809071049] [2020-10-12 13:58:12,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:12,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:12,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:12,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:12,018 INFO L87 Difference]: Start difference. First operand 1393 states and 1539 transitions. Second operand 13 states. [2020-10-12 13:58:12,804 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-12 13:58:13,298 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-12 13:58:13,674 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-12 13:58:13,911 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-12 13:58:14,237 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-10-12 13:58:14,837 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2020-10-12 13:58:15,446 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2020-10-12 13:58:15,737 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2020-10-12 13:58:16,581 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-10-12 13:58:17,239 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-10-12 13:58:17,464 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-12 13:58:17,695 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-10-12 13:58:18,113 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 62 [2020-10-12 13:58:18,524 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 66 [2020-10-12 13:58:19,142 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-12 13:58:19,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:19,368 INFO L93 Difference]: Finished difference Result 2982 states and 3303 transitions. [2020-10-12 13:58:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:58:19,369 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 710 [2020-10-12 13:58:19,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:19,376 INFO L225 Difference]: With dead ends: 2982 [2020-10-12 13:58:19,377 INFO L226 Difference]: Without dead ends: 1584 [2020-10-12 13:58:19,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=251, Invalid=679, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:58:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2020-10-12 13:58:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1566. [2020-10-12 13:58:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1566 states. [2020-10-12 13:58:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1715 transitions. [2020-10-12 13:58:19,417 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1715 transitions. Word has length 710 [2020-10-12 13:58:19,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:19,418 INFO L479 AbstractCegarLoop]: Abstraction has 1566 states and 1715 transitions. [2020-10-12 13:58:19,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1715 transitions. [2020-10-12 13:58:19,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-12 13:58:19,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:19,428 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 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, 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] [2020-10-12 13:58:19,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:58:19,428 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:19,429 INFO L82 PathProgramCache]: Analyzing trace with hash 945157740, now seen corresponding path program 1 times [2020-10-12 13:58:19,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:19,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213153061] [2020-10-12 13:58:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:19,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:19,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:20,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:20,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:21,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 829 [2020-10-12 13:58:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:58:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 13:58:24,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 500 [2020-10-12 13:58:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 13:58:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:24,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:24,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:58:24,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:24,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:24,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 13:58:24,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:24,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:58:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:24,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:24,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:24,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:24,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:24,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:58:24,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:24,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:24,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:24,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:24,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:58:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:25,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:25,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:25,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:25,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:25,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:58:25,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:25,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:25,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 13:58:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:25,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:25,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:25,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:25,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-12 13:58:25,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:58:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:25,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2020-10-12 13:58:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:25,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:25,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:25,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:26,305 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2020-10-12 13:58:26,549 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2020-10-12 13:58:26,821 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-10-12 13:58:27,100 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-10-12 13:58:27,397 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 13:58:27,694 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 13:58:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-12 13:58:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:28,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:28,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:28,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:28,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 893 proven. 73 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2020-10-12 13:58:30,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213153061] [2020-10-12 13:58:30,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:30,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:30,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558771757] [2020-10-12 13:58:30,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:30,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:30,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:30,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:30,475 INFO L87 Difference]: Start difference. First operand 1566 states and 1715 transitions. Second operand 13 states. [2020-10-12 13:58:31,135 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-12 13:58:31,381 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2020-10-12 13:58:31,656 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-10-12 13:58:31,891 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 13:58:32,285 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 13:58:32,618 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 13:58:32,987 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 86 [2020-10-12 13:58:33,465 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-10-12 13:58:33,782 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-10-12 13:58:34,437 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2020-10-12 13:58:34,745 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 62 [2020-10-12 13:58:35,096 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2020-10-12 13:58:35,388 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2020-10-12 13:58:35,874 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2020-10-12 13:58:36,312 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 69 [2020-10-12 13:58:36,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:36,922 INFO L93 Difference]: Finished difference Result 3326 states and 3652 transitions. [2020-10-12 13:58:36,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:58:36,925 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 809 [2020-10-12 13:58:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:36,932 INFO L225 Difference]: With dead ends: 3326 [2020-10-12 13:58:36,933 INFO L226 Difference]: Without dead ends: 1658 [2020-10-12 13:58:36,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:58:36,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-10-12 13:58:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1642. [2020-10-12 13:58:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-10-12 13:58:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1794 transitions. [2020-10-12 13:58:36,973 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1794 transitions. Word has length 809 [2020-10-12 13:58:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:36,974 INFO L479 AbstractCegarLoop]: Abstraction has 1642 states and 1794 transitions. [2020-10-12 13:58:36,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1794 transitions. [2020-10-12 13:58:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 884 [2020-10-12 13:58:36,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:36,985 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:58:36,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:58:36,986 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:36,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:36,986 INFO L82 PathProgramCache]: Analyzing trace with hash 635058536, now seen corresponding path program 1 times [2020-10-12 13:58:36,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:36,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692830312] [2020-10-12 13:58:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:37,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:42,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 903 [2020-10-12 13:58:42,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:58:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-12 13:58:42,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:58:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 574 [2020-10-12 13:58:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 13:58:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:58:42,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:42,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:42,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:42,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:58:42,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:42,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:42,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:42,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:42,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:42,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:58:42,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:42,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:42,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:58:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:42,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:42,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:58:42,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:42,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:58:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:42,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:42,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:58:42,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:58:42,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:42,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:42,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-12 13:58:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:42,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 13:58:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:42,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-12 13:58:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:42,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:43,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:43,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:43,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:58:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-12 13:58:43,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:58:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:58:43,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:43,766 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 13:58:43,948 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-12 13:58:44,129 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-12 13:58:44,326 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-12 13:58:44,508 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-10-12 13:58:44,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2020-10-12 13:58:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:44,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:44,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:44,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:44,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:58:44,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:44,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2038 backedges. 967 proven. 73 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2020-10-12 13:58:45,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692830312] [2020-10-12 13:58:45,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:45,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:58:45,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425892856] [2020-10-12 13:58:45,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:58:45,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:45,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:58:45,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:58:45,994 INFO L87 Difference]: Start difference. First operand 1642 states and 1794 transitions. Second operand 13 states. [2020-10-12 13:58:46,885 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-12 13:58:47,053 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-12 13:58:47,253 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-12 13:58:47,464 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 13:58:47,648 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 13:58:47,879 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2020-10-12 13:58:48,127 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-12 13:58:49,196 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-12 13:58:49,384 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-10-12 13:58:49,592 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-12 13:58:49,807 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 13:58:49,987 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-10-12 13:58:50,226 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2020-10-12 13:58:50,470 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-12 13:58:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:50,769 INFO L93 Difference]: Finished difference Result 3470 states and 3798 transitions. [2020-10-12 13:58:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:58:50,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 883 [2020-10-12 13:58:50,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:50,777 INFO L225 Difference]: With dead ends: 3470 [2020-10-12 13:58:50,777 INFO L226 Difference]: Without dead ends: 1399 [2020-10-12 13:58:50,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:58:50,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2020-10-12 13:58:50,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1389. [2020-10-12 13:58:50,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1389 states. [2020-10-12 13:58:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1528 transitions. [2020-10-12 13:58:50,811 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1528 transitions. Word has length 883 [2020-10-12 13:58:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:50,811 INFO L479 AbstractCegarLoop]: Abstraction has 1389 states and 1528 transitions. [2020-10-12 13:58:50,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:58:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1528 transitions. [2020-10-12 13:58:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2020-10-12 13:58:50,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:50,824 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 6, 6, 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, 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 13:58:50,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:58:50,824 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:50,825 INFO L82 PathProgramCache]: Analyzing trace with hash 774049621, now seen corresponding path program 1 times [2020-10-12 13:58:50,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:50,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096994700] [2020-10-12 13:58:50,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:51,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:53,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 907 [2020-10-12 13:58:56,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:58:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-12 13:58:56,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:58:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:58:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 13:58:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:58:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:58:56,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:58:56,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:58:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:58:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:58:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:58:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:58:56,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 13:58:56,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:58:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:58:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:58:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 13:58:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:58:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 13:58:56,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-12 13:58:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:56,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 13:58:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:58:56,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:58:56,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-12 13:58:56,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 13:58:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-12 13:58:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2020-10-12 13:58:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:58:56,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:58:56,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 13:58:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2020-10-12 13:58:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:58:56,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 13:58:56,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 13:58:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:56,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2020-10-12 13:58:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:56,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:56,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:58:56,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:58:56,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:58:56,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:58:56,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:58:56,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:58:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-12 13:58:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:58:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:58:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2341 backedges. 455 proven. 528 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2020-10-12 13:58:57,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096994700] [2020-10-12 13:58:57,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:58:57,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:58:57,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966740635] [2020-10-12 13:58:57,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:58:57,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:58:57,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:58:57,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:58:57,034 INFO L87 Difference]: Start difference. First operand 1389 states and 1528 transitions. Second operand 7 states. [2020-10-12 13:58:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:58:58,379 INFO L93 Difference]: Finished difference Result 3338 states and 3754 transitions. [2020-10-12 13:58:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:58:58,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 885 [2020-10-12 13:58:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:58:58,386 INFO L225 Difference]: With dead ends: 3338 [2020-10-12 13:58:58,387 INFO L226 Difference]: Without dead ends: 1955 [2020-10-12 13:58:58,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:58:58,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2020-10-12 13:58:58,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1763. [2020-10-12 13:58:58,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-10-12 13:58:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 1933 transitions. [2020-10-12 13:58:58,428 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 1933 transitions. Word has length 885 [2020-10-12 13:58:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:58:58,428 INFO L479 AbstractCegarLoop]: Abstraction has 1763 states and 1933 transitions. [2020-10-12 13:58:58,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:58:58,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 1933 transitions. [2020-10-12 13:58:58,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2020-10-12 13:58:58,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:58:58,440 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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 13:58:58,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:58:58,440 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:58:58,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:58:58,441 INFO L82 PathProgramCache]: Analyzing trace with hash -106576094, now seen corresponding path program 1 times [2020-10-12 13:58:58,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:58:58,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795292783] [2020-10-12 13:58:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:58:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:58:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:58:58,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:01,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1019 [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4534 [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 13:59:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 13:59:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:03,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:59:03,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:03,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:03,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:03,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:59:03,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:03,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:03,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:59:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 13:59:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:03,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:03,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:59:03,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:04,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3076 backedges. 1047 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 13:59:04,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795292783] [2020-10-12 13:59:04,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:04,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:04,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354452936] [2020-10-12 13:59:04,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:04,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:04,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:04,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:04,066 INFO L87 Difference]: Start difference. First operand 1763 states and 1933 transitions. Second operand 7 states. [2020-10-12 13:59:05,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:05,549 INFO L93 Difference]: Finished difference Result 3896 states and 4385 transitions. [2020-10-12 13:59:05,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:59:05,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 995 [2020-10-12 13:59:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:05,559 INFO L225 Difference]: With dead ends: 3896 [2020-10-12 13:59:05,559 INFO L226 Difference]: Without dead ends: 2321 [2020-10-12 13:59:05,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:59:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2020-10-12 13:59:05,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2317. [2020-10-12 13:59:05,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2317 states. [2020-10-12 13:59:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2549 transitions. [2020-10-12 13:59:05,613 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2549 transitions. Word has length 995 [2020-10-12 13:59:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:05,615 INFO L479 AbstractCegarLoop]: Abstraction has 2317 states and 2549 transitions. [2020-10-12 13:59:05,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2549 transitions. [2020-10-12 13:59:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2020-10-12 13:59:05,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:05,629 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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 13:59:05,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:59:05,629 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:05,630 INFO L82 PathProgramCache]: Analyzing trace with hash 812249674, now seen corresponding path program 1 times [2020-10-12 13:59:05,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:05,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426348553] [2020-10-12 13:59:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:06,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:06,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:07,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:10,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1031 [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:59:10,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-12 13:59:10,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:11,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:11,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:11,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:11,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:11,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:11,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:11,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:11,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:59:11,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:11,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:11,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:11,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:59:11,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:11,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:59:11,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:11,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:11,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:59:11,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:59:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:59:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:11,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:11,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:11,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:11,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:59:11,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:11,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 13:59:11,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 13:59:11,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 1694 proven. 6 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2020-10-12 13:59:12,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426348553] [2020-10-12 13:59:12,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:12,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:59:12,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477467388] [2020-10-12 13:59:12,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:59:12,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:12,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:59:12,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:59:12,111 INFO L87 Difference]: Start difference. First operand 2317 states and 2549 transitions. Second operand 9 states. [2020-10-12 13:59:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:14,671 INFO L93 Difference]: Finished difference Result 5952 states and 6790 transitions. [2020-10-12 13:59:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 13:59:14,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1007 [2020-10-12 13:59:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:14,688 INFO L225 Difference]: With dead ends: 5952 [2020-10-12 13:59:14,688 INFO L226 Difference]: Without dead ends: 3823 [2020-10-12 13:59:14,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-12 13:59:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3823 states. [2020-10-12 13:59:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 3807. [2020-10-12 13:59:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-10-12 13:59:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4307 transitions. [2020-10-12 13:59:14,776 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4307 transitions. Word has length 1007 [2020-10-12 13:59:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:14,777 INFO L479 AbstractCegarLoop]: Abstraction has 3807 states and 4307 transitions. [2020-10-12 13:59:14,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:59:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4307 transitions. [2020-10-12 13:59:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1123 [2020-10-12 13:59:14,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:14,793 INFO L422 BasicCegarLoop]: trace histogram [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, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:59:14,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 13:59:14,793 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:14,793 INFO L82 PathProgramCache]: Analyzing trace with hash -760782134, now seen corresponding path program 1 times [2020-10-12 13:59:14,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:14,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705603820] [2020-10-12 13:59:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:15,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:15,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1148 [2020-10-12 13:59:20,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-12 13:59:20,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:59:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:59:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 387 [2020-10-12 13:59:20,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:20,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:20,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:20,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:20,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:20,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:59:20,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:20,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:20,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:59:20,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:20,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:59:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:20,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:59:20,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:20,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:20,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:20,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:20,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 13:59:20,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:20,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:20,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:59:20,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:20,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:20,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:21,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:21,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:59:21,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:21,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:59:21,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:59:21,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4007 backedges. 2354 proven. 275 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2020-10-12 13:59:22,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705603820] [2020-10-12 13:59:22,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:22,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 13:59:22,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153952594] [2020-10-12 13:59:22,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 13:59:22,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:22,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 13:59:22,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:59:22,095 INFO L87 Difference]: Start difference. First operand 3807 states and 4307 transitions. Second operand 11 states. [2020-10-12 13:59:25,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:25,086 INFO L93 Difference]: Finished difference Result 7254 states and 8268 transitions. [2020-10-12 13:59:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 13:59:25,090 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1122 [2020-10-12 13:59:25,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:25,103 INFO L225 Difference]: With dead ends: 7254 [2020-10-12 13:59:25,103 INFO L226 Difference]: Without dead ends: 3635 [2020-10-12 13:59:25,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-10-12 13:59:25,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2020-10-12 13:59:25,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3623. [2020-10-12 13:59:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3623 states. [2020-10-12 13:59:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 4104 transitions. [2020-10-12 13:59:25,186 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 4104 transitions. Word has length 1122 [2020-10-12 13:59:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:25,187 INFO L479 AbstractCegarLoop]: Abstraction has 3623 states and 4104 transitions. [2020-10-12 13:59:25,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 13:59:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 4104 transitions. [2020-10-12 13:59:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2020-10-12 13:59:25,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:25,205 INFO L422 BasicCegarLoop]: trace histogram [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, 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 13:59:25,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 13:59:25,206 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:25,207 INFO L82 PathProgramCache]: Analyzing trace with hash 373224900, now seen corresponding path program 1 times [2020-10-12 13:59:25,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:25,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369580059] [2020-10-12 13:59:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:28,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1293 [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1221 [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 13:59:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:30,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:30,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:30,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:59:30,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:30,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:30,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:30,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:30,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:30,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:30,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:30,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:31,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:31,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:31,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:59:31,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:31,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:31,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:31,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:59:31,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:31,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 13:59:31,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:59:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5067 backedges. 667 proven. 10 refuted. 0 times theorem prover too weak. 4390 trivial. 0 not checked. [2020-10-12 13:59:31,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369580059] [2020-10-12 13:59:31,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:31,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:59:31,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861264594] [2020-10-12 13:59:31,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:59:31,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:31,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:59:31,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:59:31,930 INFO L87 Difference]: Start difference. First operand 3623 states and 4104 transitions. Second operand 8 states. [2020-10-12 13:59:33,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:33,143 INFO L93 Difference]: Finished difference Result 7160 states and 8186 transitions. [2020-10-12 13:59:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:59:33,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1265 [2020-10-12 13:59:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:33,154 INFO L225 Difference]: With dead ends: 7160 [2020-10-12 13:59:33,154 INFO L226 Difference]: Without dead ends: 3621 [2020-10-12 13:59:33,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:59:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2020-10-12 13:59:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3619. [2020-10-12 13:59:33,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3619 states. [2020-10-12 13:59:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 4072 transitions. [2020-10-12 13:59:33,237 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 4072 transitions. Word has length 1265 [2020-10-12 13:59:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:33,239 INFO L479 AbstractCegarLoop]: Abstraction has 3619 states and 4072 transitions. [2020-10-12 13:59:33,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:59:33,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 4072 transitions. [2020-10-12 13:59:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1272 [2020-10-12 13:59:33,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:33,263 INFO L422 BasicCegarLoop]: trace histogram [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, 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 13:59:33,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 13:59:33,264 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:33,264 INFO L82 PathProgramCache]: Analyzing trace with hash 415632344, now seen corresponding path program 1 times [2020-10-12 13:59:33,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:33,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410202999] [2020-10-12 13:59:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:33,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:36,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1299 [2020-10-12 13:59:38,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:59:38,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 13:59:38,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:59:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 13:59:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:38,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:38,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:38,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:38,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:38,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:59:38,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:59:38,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:38,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:38,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:38,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:38,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:38,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:38,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:38,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:38,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:38,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:39,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:39,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:39,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:39,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:39,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:39,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:39,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:39,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 13:59:39,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:39,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:59:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:39,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:39,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:39,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 13:59:39,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 13:59:39,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 13:59:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5109 backedges. 1464 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-12 13:59:39,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410202999] [2020-10-12 13:59:39,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:39,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:39,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556744510] [2020-10-12 13:59:39,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:39,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:39,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:39,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:39,968 INFO L87 Difference]: Start difference. First operand 3619 states and 4072 transitions. Second operand 7 states. [2020-10-12 13:59:41,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:41,437 INFO L93 Difference]: Finished difference Result 7874 states and 8974 transitions. [2020-10-12 13:59:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:59:41,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1271 [2020-10-12 13:59:41,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:41,454 INFO L225 Difference]: With dead ends: 7874 [2020-10-12 13:59:41,454 INFO L226 Difference]: Without dead ends: 4443 [2020-10-12 13:59:41,461 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 13:59:41,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2020-10-12 13:59:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4256. [2020-10-12 13:59:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4256 states. [2020-10-12 13:59:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 4795 transitions. [2020-10-12 13:59:41,540 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 4795 transitions. Word has length 1271 [2020-10-12 13:59:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:41,542 INFO L479 AbstractCegarLoop]: Abstraction has 4256 states and 4795 transitions. [2020-10-12 13:59:41,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 4795 transitions. [2020-10-12 13:59:41,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1378 [2020-10-12 13:59:41,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:41,566 INFO L422 BasicCegarLoop]: trace histogram [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, 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 13:59:41,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 13:59:41,566 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:41,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:41,567 INFO L82 PathProgramCache]: Analyzing trace with hash 459995571, now seen corresponding path program 1 times [2020-10-12 13:59:41,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:41,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957721766] [2020-10-12 13:59:41,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:42,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:44,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:46,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:46,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1407 [2020-10-12 13:59:46,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:59:46,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 13:59:46,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1253 [2020-10-12 13:59:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 13:59:46,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:47,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:47,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:47,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:47,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:47,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:47,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:47,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:47,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:59:47,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:47,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:47,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:47,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:47,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:59:47,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:47,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:47,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:59:47,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:47,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 13:59:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:47,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:59:47,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6134 backedges. 1450 proven. 74 refuted. 0 times theorem prover too weak. 4610 trivial. 0 not checked. [2020-10-12 13:59:48,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957721766] [2020-10-12 13:59:48,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:48,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:59:48,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244043419] [2020-10-12 13:59:48,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:59:48,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:48,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:59:48,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:59:48,341 INFO L87 Difference]: Start difference. First operand 4256 states and 4795 transitions. Second operand 7 states. [2020-10-12 13:59:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:49,705 INFO L93 Difference]: Finished difference Result 8698 states and 9862 transitions. [2020-10-12 13:59:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:59:49,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1377 [2020-10-12 13:59:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:49,735 INFO L225 Difference]: With dead ends: 8698 [2020-10-12 13:59:49,735 INFO L226 Difference]: Without dead ends: 4630 [2020-10-12 13:59:49,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 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 13:59:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2020-10-12 13:59:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 4440. [2020-10-12 13:59:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4440 states. [2020-10-12 13:59:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 5000 transitions. [2020-10-12 13:59:49,823 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 5000 transitions. Word has length 1377 [2020-10-12 13:59:49,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:49,824 INFO L479 AbstractCegarLoop]: Abstraction has 4440 states and 5000 transitions. [2020-10-12 13:59:49,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:59:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 5000 transitions. [2020-10-12 13:59:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1381 [2020-10-12 13:59:49,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:49,846 INFO L422 BasicCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 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, 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 13:59:49,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 13:59:49,846 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:49,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:49,847 INFO L82 PathProgramCache]: Analyzing trace with hash -274341616, now seen corresponding path program 1 times [2020-10-12 13:59:49,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:49,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223072722] [2020-10-12 13:59:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:50,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:52,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1410 [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:59:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:59:55,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-12 13:59:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:59:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:59:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:59:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:59:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:59:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:59:55,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:55,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:59:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:59:55,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:59:55,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:59:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:59:55,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:59:55,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:59:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:59:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:59:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:59:55,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 13:59:55,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:59:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:55,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:59:55,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:59:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:59:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:59:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:59:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:55,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:59:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:55,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:55,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:55,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:59:55,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:59:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-12 13:59:55,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:59:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:56,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 13:59:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:56,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:59:56,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:59:56,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:59:56,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:59:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6159 backedges. 2420 proven. 6 refuted. 0 times theorem prover too weak. 3733 trivial. 0 not checked. [2020-10-12 13:59:57,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223072722] [2020-10-12 13:59:57,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:59:57,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 13:59:57,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550418483] [2020-10-12 13:59:57,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:59:57,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:59:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:59:57,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:59:57,188 INFO L87 Difference]: Start difference. First operand 4440 states and 5000 transitions. Second operand 8 states. [2020-10-12 13:59:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:59:58,869 INFO L93 Difference]: Finished difference Result 9067 states and 10218 transitions. [2020-10-12 13:59:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 13:59:58,870 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1380 [2020-10-12 13:59:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:59:58,882 INFO L225 Difference]: With dead ends: 9067 [2020-10-12 13:59:58,882 INFO L226 Difference]: Without dead ends: 4815 [2020-10-12 13:59:58,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-12 13:59:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4815 states. [2020-10-12 13:59:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4815 to 4630. [2020-10-12 13:59:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4630 states. [2020-10-12 13:59:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4630 states to 4630 states and 5174 transitions. [2020-10-12 13:59:58,972 INFO L78 Accepts]: Start accepts. Automaton has 4630 states and 5174 transitions. Word has length 1380 [2020-10-12 13:59:58,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:59:58,973 INFO L479 AbstractCegarLoop]: Abstraction has 4630 states and 5174 transitions. [2020-10-12 13:59:58,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:59:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4630 states and 5174 transitions. [2020-10-12 13:59:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1442 [2020-10-12 13:59:59,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:59:59,005 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-12 13:59:59,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 13:59:59,005 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:59:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:59:59,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1986108109, now seen corresponding path program 1 times [2020-10-12 13:59:59,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:59:59,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628800297] [2020-10-12 13:59:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:59:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:59:59,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:00,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1471 [2020-10-12 14:00:01,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:01,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2400 [2020-10-12 14:00:01,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1399 [2020-10-12 14:00:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:00:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:01,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:01,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:01,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:00:01,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:01,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:01,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:01,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:01,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:01,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:01,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:01,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:00:01,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:00:01,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:00:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:00:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:00:02,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:00:02,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:00:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:00:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:00:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:00:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:00:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:02,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:00:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:02,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:02,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:00:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6276 backedges. 734 proven. 11 refuted. 0 times theorem prover too weak. 5531 trivial. 0 not checked. [2020-10-12 14:00:03,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628800297] [2020-10-12 14:00:03,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:03,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:00:03,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716652038] [2020-10-12 14:00:03,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:00:03,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:03,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:00:03,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:00:03,481 INFO L87 Difference]: Start difference. First operand 4630 states and 5174 transitions. Second operand 5 states. [2020-10-12 14:00:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:04,887 INFO L93 Difference]: Finished difference Result 10354 states and 11817 transitions. [2020-10-12 14:00:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:04,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1441 [2020-10-12 14:00:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:04,907 INFO L225 Difference]: With dead ends: 10354 [2020-10-12 14:00:04,908 INFO L226 Difference]: Without dead ends: 5912 [2020-10-12 14:00:04,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 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 14:00:04,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2020-10-12 14:00:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 5548. [2020-10-12 14:00:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5548 states. [2020-10-12 14:00:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 6216 transitions. [2020-10-12 14:00:05,037 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 6216 transitions. Word has length 1441 [2020-10-12 14:00:05,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:05,039 INFO L479 AbstractCegarLoop]: Abstraction has 5548 states and 6216 transitions. [2020-10-12 14:00:05,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:00:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 6216 transitions. [2020-10-12 14:00:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1540 [2020-10-12 14:00:05,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:05,079 INFO L422 BasicCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 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, 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] [2020-10-12 14:00:05,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:00:05,080 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:05,081 INFO L82 PathProgramCache]: Analyzing trace with hash -662670065, now seen corresponding path program 1 times [2020-10-12 14:00:05,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:05,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258411388] [2020-10-12 14:00:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:05,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:07,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1569 [2020-10-12 14:00:08,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:08,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2635 [2020-10-12 14:00:08,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-12 14:00:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:00:08,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:08,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:00:08,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:08,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:00:08,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:08,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:00:08,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:00:08,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:00:08,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:00:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:00:08,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:00:08,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:00:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:00:08,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:00:08,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:08,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:00:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:00:08,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:00:08,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:00:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:08,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:00:08,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:00:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:00:08,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:00:08,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:08,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:00:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:08,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:08,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:08,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:00:08,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:00:08,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:09,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:00:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:09,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:00:09,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:00:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:09,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:00:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:09,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:09,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:09,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:00:09,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-12 14:00:09,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 14:00:09,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:10,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6764 backedges. 734 proven. 11 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-10-12 14:00:10,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258411388] [2020-10-12 14:00:10,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:10,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:00:10,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812925370] [2020-10-12 14:00:10,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:00:10,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:10,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:00:10,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:00:10,856 INFO L87 Difference]: Start difference. First operand 5548 states and 6216 transitions. Second operand 5 states. [2020-10-12 14:00:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:12,873 INFO L93 Difference]: Finished difference Result 12752 states and 14609 transitions. [2020-10-12 14:00:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:12,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1539 [2020-10-12 14:00:12,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:12,899 INFO L225 Difference]: With dead ends: 12752 [2020-10-12 14:00:12,899 INFO L226 Difference]: Without dead ends: 7392 [2020-10-12 14:00:12,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:00:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2020-10-12 14:00:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 6846. [2020-10-12 14:00:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6846 states. [2020-10-12 14:00:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6846 states to 6846 states and 7666 transitions. [2020-10-12 14:00:13,067 INFO L78 Accepts]: Start accepts. Automaton has 6846 states and 7666 transitions. Word has length 1539 [2020-10-12 14:00:13,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:13,070 INFO L479 AbstractCegarLoop]: Abstraction has 6846 states and 7666 transitions. [2020-10-12 14:00:13,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:00:13,070 INFO L276 IsEmpty]: Start isEmpty. Operand 6846 states and 7666 transitions. [2020-10-12 14:00:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1547 [2020-10-12 14:00:13,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:13,114 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 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 14:00:13,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:00:13,115 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:13,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1887104243, now seen corresponding path program 1 times [2020-10-12 14:00:13,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:13,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779211535] [2020-10-12 14:00:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:15,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:16,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:18,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:18,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1578 [2020-10-12 14:00:18,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:00:18,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-12 14:00:18,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:00:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 14:00:18,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:18,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:18,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:18,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:18,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:00:18,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:00:19,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:00:19,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:00:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:00:19,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:00:19,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:00:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:00:19,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:00:19,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:00:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:00:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:00:19,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:00:19,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:00:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:00:19,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:00:19,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:00:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:00:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:00:19,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:00:19,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:00:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:00:19,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:00:19,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:00:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:00:19,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 14:00:19,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:00:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:00:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:00:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:00:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:19,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:00:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:20,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:20,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:00:20,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:00:20,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-12 14:00:20,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:00:20,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7401 backedges. 1611 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-12 14:00:21,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779211535] [2020-10-12 14:00:21,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:00:21,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:00:21,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278668571] [2020-10-12 14:00:21,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:21,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:21,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:21,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:21,322 INFO L87 Difference]: Start difference. First operand 6846 states and 7666 transitions. Second operand 7 states. [2020-10-12 14:00:22,934 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-12 14:00:23,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:23,267 INFO L93 Difference]: Finished difference Result 13558 states and 15217 transitions. [2020-10-12 14:00:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:00:23,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1546 [2020-10-12 14:00:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:23,285 INFO L225 Difference]: With dead ends: 13558 [2020-10-12 14:00:23,286 INFO L226 Difference]: Without dead ends: 6868 [2020-10-12 14:00:23,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:00:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6868 states. [2020-10-12 14:00:23,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6868 to 6844. [2020-10-12 14:00:23,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6844 states. [2020-10-12 14:00:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6844 states to 6844 states and 7647 transitions. [2020-10-12 14:00:23,443 INFO L78 Accepts]: Start accepts. Automaton has 6844 states and 7647 transitions. Word has length 1546 [2020-10-12 14:00:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:23,447 INFO L479 AbstractCegarLoop]: Abstraction has 6844 states and 7647 transitions. [2020-10-12 14:00:23,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:23,447 INFO L276 IsEmpty]: Start isEmpty. Operand 6844 states and 7647 transitions. [2020-10-12 14:00:23,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1569 [2020-10-12 14:00:23,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:23,482 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 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 14:00:23,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:00:23,482 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:23,483 INFO L82 PathProgramCache]: Analyzing trace with hash 153194983, now seen corresponding path program 1 times [2020-10-12 14:00:23,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:23,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153528723] [2020-10-12 14:00:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:25,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking...