/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_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:53:47,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:53:47,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:53:47,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:53:47,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:53:47,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:53:47,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:53:47,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:53:47,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:53:47,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:53:47,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:53:47,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:53:47,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:53:47,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:53:47,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:53:47,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:53:47,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:53:47,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:53:47,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:53:47,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:53:47,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:53:47,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:53:47,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:53:47,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:53:47,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:53:47,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:53:47,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:53:47,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:53:47,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:53:47,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:53:47,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:53:47,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:53:47,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:53:47,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:53:47,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:53:47,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:53:47,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:53:47,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:53:47,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:53:47,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:53:47,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:53:47,458 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 13:53:47,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:53:47,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:53:47,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:53:47,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:53:47,481 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:53:47,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:53:47,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:53:47,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:53:47,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:53:47,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:53:47,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:53:47,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:53:47,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:53:47,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:53:47,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:53:47,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:53:47,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:53:47,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:53:47,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:53:47,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:53:47,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:53:47,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:53:47,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:53:47,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:53:47,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:53:47,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:53:47,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:53:47,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:53:47,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:53:47,486 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 13:53:47,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:53:47,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:53:47,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:53:47,779 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:53:47,780 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:53:47,781 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label18.c [2020-10-12 13:53:47,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/245b3a6ac/2ccad78e16bf4dd4b4ac95c51ded9248/FLAG8b1d53805 [2020-10-12 13:53:48,376 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:53:48,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label18.c [2020-10-12 13:53:48,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/245b3a6ac/2ccad78e16bf4dd4b4ac95c51ded9248/FLAG8b1d53805 [2020-10-12 13:53:48,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/245b3a6ac/2ccad78e16bf4dd4b4ac95c51ded9248 [2020-10-12 13:53:48,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:53:48,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:53:48,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:53:48,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:53:48,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:53:48,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:53:48" (1/1) ... [2020-10-12 13:53:48,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad693f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:48, skipping insertion in model container [2020-10-12 13:53:48,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:53:48" (1/1) ... [2020-10-12 13:53:48,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:53:48,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:53:49,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:53:49,295 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:53:49,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:53:49,471 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:53:49,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49 WrapperNode [2020-10-12 13:53:49,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:53:49,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:53:49,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:53:49,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:53:49,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (1/1) ... [2020-10-12 13:53:49,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:53:49,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:53:49,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:53:49,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:53:49,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (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 13:53:49,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:53:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:53:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:53:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:53:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:53:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:53:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:53:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:53:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:53:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:53:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:53:51,155 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:53:51,155 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:53:51,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:53:51 BoogieIcfgContainer [2020-10-12 13:53:51,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:53:51,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:53:51,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:53:51,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:53:51,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:53:48" (1/3) ... [2020-10-12 13:53:51,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17577c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:53:51, skipping insertion in model container [2020-10-12 13:53:51,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:53:49" (2/3) ... [2020-10-12 13:53:51,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17577c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:53:51, skipping insertion in model container [2020-10-12 13:53:51,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:53:51" (3/3) ... [2020-10-12 13:53:51,169 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label18.c [2020-10-12 13:53:51,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:53:51,187 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:53:51,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:53:51,224 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:53:51,224 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:53:51,225 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:53:51,225 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:53:51,225 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:53:51,225 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:53:51,226 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:53:51,226 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:53:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 13:53:51,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 13:53:51,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:51,257 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] [2020-10-12 13:53:51,258 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:51,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:51,263 INFO L82 PathProgramCache]: Analyzing trace with hash 730753051, now seen corresponding path program 1 times [2020-10-12 13:53:51,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:51,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299510592] [2020-10-12 13:53:51,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 13:53:51,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-12 13:53:51,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:53:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:53:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 13:53:51,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:53:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:51,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:51,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:51,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:51,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:51,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:53:51,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:51,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:51,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:51,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:53:51,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:53:51,833 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 13:53:51,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299510592] [2020-10-12 13:53:51,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:53:51,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 13:53:51,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41835881] [2020-10-12 13:53:51,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 13:53:51,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:51,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 13:53:51,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 13:53:51,863 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 13:53:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:53,732 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-12 13:53:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:53:53,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-12 13:53:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:53,760 INFO L225 Difference]: With dead ends: 698 [2020-10-12 13:53:53,761 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 13:53:53,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:53:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 13:53:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-12 13:53:53,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-12 13:53:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-12 13:53:53,885 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 26 [2020-10-12 13:53:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:53,886 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-12 13:53:53,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 13:53:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-12 13:53:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 13:53:53,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:53,893 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:53:53,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:53:53,894 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:53,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1043318331, now seen corresponding path program 1 times [2020-10-12 13:53:53,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:53,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113088571] [2020-10-12 13:53:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:54,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 13:53:54,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:53:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-10-12 13:53:54,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:54,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:53:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:53:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 13:53:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:53:54,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:54,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:54,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:54,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:54,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:53:54,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:53:54,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 13:53:54,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:54,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:54,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:54,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 13:53:54,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:54,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 13:53:54,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 13:53:54,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:53:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:53:55,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113088571] [2020-10-12 13:53:55,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:53:55,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:53:55,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337574866] [2020-10-12 13:53:55,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:53:55,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:55,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:53:55,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:53:55,078 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 7 states. [2020-10-12 13:53:57,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:53:57,168 INFO L93 Difference]: Finished difference Result 1168 states and 1798 transitions. [2020-10-12 13:53:57,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:53:57,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2020-10-12 13:53:57,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:53:57,176 INFO L225 Difference]: With dead ends: 1168 [2020-10-12 13:53:57,176 INFO L226 Difference]: Without dead ends: 798 [2020-10-12 13:53:57,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 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 13:53:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-12 13:53:57,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 750. [2020-10-12 13:53:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-12 13:53:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1006 transitions. [2020-10-12 13:53:57,253 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1006 transitions. Word has length 95 [2020-10-12 13:53:57,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:53:57,254 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1006 transitions. [2020-10-12 13:53:57,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:53:57,254 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1006 transitions. [2020-10-12 13:53:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 13:53:57,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:53:57,264 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 13:53:57,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:53:57,264 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:53:57,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:53:57,265 INFO L82 PathProgramCache]: Analyzing trace with hash 889296378, now seen corresponding path program 1 times [2020-10-12 13:53:57,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:53:57,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946642140] [2020-10-12 13:53:57,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:53:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:57,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:57,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:57,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:57,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 13:53:57,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:53:57,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-12 13:53:57,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:53:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:53:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:53:57,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:53:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:57,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:57,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:53:57,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 13:53:57,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:53:57,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:53:57,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:53:57,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:53:57,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:53:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:53:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:53:58,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:53:58,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:53:58,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:53:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-12 13:53:58,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:53:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:53:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:53:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:53:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:53:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:53:58,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946642140] [2020-10-12 13:53:58,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:53:58,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:53:58,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429426159] [2020-10-12 13:53:58,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:53:58,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:53:58,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:53:58,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:53:58,194 INFO L87 Difference]: Start difference. First operand 750 states and 1006 transitions. Second operand 7 states. [2020-10-12 13:54:00,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:00,083 INFO L93 Difference]: Finished difference Result 2112 states and 2998 transitions. [2020-10-12 13:54:00,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:54:00,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-10-12 13:54:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:00,098 INFO L225 Difference]: With dead ends: 2112 [2020-10-12 13:54:00,098 INFO L226 Difference]: Without dead ends: 1368 [2020-10-12 13:54:00,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:54:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-12 13:54:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1310. [2020-10-12 13:54:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-10-12 13:54:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1646 transitions. [2020-10-12 13:54:00,160 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1646 transitions. Word has length 98 [2020-10-12 13:54:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:00,162 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1646 transitions. [2020-10-12 13:54:00,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:54:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1646 transitions. [2020-10-12 13:54:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-12 13:54:00,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:00,168 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:00,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:54:00,168 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:00,169 INFO L82 PathProgramCache]: Analyzing trace with hash -401317418, now seen corresponding path program 1 times [2020-10-12 13:54:00,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:00,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546618684] [2020-10-12 13:54:00,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:00,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:01,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:01,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 13:54:01,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:01,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-10-12 13:54:01,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 13:54:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 13:54:01,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:01,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:01,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:01,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:01,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:01,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:01,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:01,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:01,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 13:54:01,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:01,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 13:54:01,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 13:54:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:01,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 13:54:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:01,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:01,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:01,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:01,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:54:01,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:01,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 13:54:01,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:54:01,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:54:02,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546618684] [2020-10-12 13:54:02,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:02,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:54:02,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940678295] [2020-10-12 13:54:02,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:54:02,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:02,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:54:02,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:54:02,081 INFO L87 Difference]: Start difference. First operand 1310 states and 1646 transitions. Second operand 6 states. [2020-10-12 13:54:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:03,495 INFO L93 Difference]: Finished difference Result 2352 states and 3001 transitions. [2020-10-12 13:54:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:54:03,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-12 13:54:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:03,510 INFO L225 Difference]: With dead ends: 2352 [2020-10-12 13:54:03,510 INFO L226 Difference]: Without dead ends: 1158 [2020-10-12 13:54:03,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:54:03,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2020-10-12 13:54:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1120. [2020-10-12 13:54:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-10-12 13:54:03,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1237 transitions. [2020-10-12 13:54:03,547 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1237 transitions. Word has length 183 [2020-10-12 13:54:03,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:03,549 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1237 transitions. [2020-10-12 13:54:03,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:54:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1237 transitions. [2020-10-12 13:54:03,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-12 13:54:03,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:03,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:03,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:54:03,553 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:03,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:03,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1989859030, now seen corresponding path program 1 times [2020-10-12 13:54:03,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:03,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503147550] [2020-10-12 13:54:03,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:03,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:03,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:03,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:05,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:05,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-12 13:54:05,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:05,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1836 [2020-10-12 13:54:05,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:05,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 13:54:05,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:54:05,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-12 13:54:05,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:05,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:05,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:05,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:05,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:05,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:54:05,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:54:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:05,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:05,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:05,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 13:54:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:54:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:05,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:05,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:05,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:05,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:54:05,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:05,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 13:54:05,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:54:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 13:54:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 39 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 13:54:06,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503147550] [2020-10-12 13:54:06,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:06,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:54:06,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410876576] [2020-10-12 13:54:06,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 13:54:06,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:06,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 13:54:06,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 13:54:06,081 INFO L87 Difference]: Start difference. First operand 1120 states and 1237 transitions. Second operand 8 states. [2020-10-12 13:54:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:07,894 INFO L93 Difference]: Finished difference Result 2270 states and 2599 transitions. [2020-10-12 13:54:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 13:54:07,895 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 209 [2020-10-12 13:54:07,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:07,902 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 13:54:07,902 INFO L226 Difference]: Without dead ends: 1522 [2020-10-12 13:54:07,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-10-12 13:54:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-10-12 13:54:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1488. [2020-10-12 13:54:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2020-10-12 13:54:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1613 transitions. [2020-10-12 13:54:07,938 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1613 transitions. Word has length 209 [2020-10-12 13:54:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:07,939 INFO L479 AbstractCegarLoop]: Abstraction has 1488 states and 1613 transitions. [2020-10-12 13:54:07,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 13:54:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1613 transitions. [2020-10-12 13:54:07,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-10-12 13:54:07,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:07,947 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:07,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:54:07,947 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:07,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1668923331, now seen corresponding path program 1 times [2020-10-12 13:54:07,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:07,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236914571] [2020-10-12 13:54:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:08,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:08,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:08,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 444 [2020-10-12 13:54:13,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:54:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-12 13:54:13,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:54:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 13:54:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-12 13:54:13,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:13,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:13,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:13,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:13,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:13,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:13,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:13,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:13,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:13,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:13,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:54:13,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:13,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:13,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:13,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 13:54:13,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 13:54:13,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:13,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:13,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:13,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-12 13:54:13,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 13:54:13,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:13,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 13:54:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:13,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:13,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:13,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:54:13,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 13:54:13,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:54:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 436 proven. 6 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2020-10-12 13:54:14,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236914571] [2020-10-12 13:54:14,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:14,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:54:14,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881017252] [2020-10-12 13:54:14,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:54:14,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:14,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:54:14,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:54:14,186 INFO L87 Difference]: Start difference. First operand 1488 states and 1613 transitions. Second operand 7 states. [2020-10-12 13:54:16,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:16,185 INFO L93 Difference]: Finished difference Result 2816 states and 3094 transitions. [2020-10-12 13:54:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:54:16,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 428 [2020-10-12 13:54:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:16,195 INFO L225 Difference]: With dead ends: 2816 [2020-10-12 13:54:16,195 INFO L226 Difference]: Without dead ends: 1700 [2020-10-12 13:54:16,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 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 13:54:16,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-10-12 13:54:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1674. [2020-10-12 13:54:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1674 states. [2020-10-12 13:54:16,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 1802 transitions. [2020-10-12 13:54:16,238 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 1802 transitions. Word has length 428 [2020-10-12 13:54:16,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:16,240 INFO L479 AbstractCegarLoop]: Abstraction has 1674 states and 1802 transitions. [2020-10-12 13:54:16,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:54:16,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 1802 transitions. [2020-10-12 13:54:16,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2020-10-12 13:54:16,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:16,256 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:16,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:54:16,256 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:16,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1297000138, now seen corresponding path program 1 times [2020-10-12 13:54:16,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:16,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031707331] [2020-10-12 13:54:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:16,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:16,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 612 [2020-10-12 13:54:18,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:18,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2136 [2020-10-12 13:54:18,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 13:54:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 13:54:18,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:18,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:18,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:18,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:54:18,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:18,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 13:54:18,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:18,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:54:18,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:18,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:54:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 13:54:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:54:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:19,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:54:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:19,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:19,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:19,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:54:19,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:19,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 13:54:19,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:19,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:19,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:19,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:54:19,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 390 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-12 13:54:19,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031707331] [2020-10-12 13:54:19,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:19,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:54:19,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169818202] [2020-10-12 13:54:19,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:54:19,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:19,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:54:19,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:54:19,862 INFO L87 Difference]: Start difference. First operand 1674 states and 1802 transitions. Second operand 7 states. [2020-10-12 13:54:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:21,171 INFO L93 Difference]: Finished difference Result 3176 states and 3458 transitions. [2020-10-12 13:54:21,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:54:21,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 594 [2020-10-12 13:54:21,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:21,179 INFO L225 Difference]: With dead ends: 3176 [2020-10-12 13:54:21,179 INFO L226 Difference]: Without dead ends: 1874 [2020-10-12 13:54:21,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 13:54:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2020-10-12 13:54:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1862. [2020-10-12 13:54:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-10-12 13:54:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2006 transitions. [2020-10-12 13:54:21,225 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2006 transitions. Word has length 594 [2020-10-12 13:54:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:21,226 INFO L479 AbstractCegarLoop]: Abstraction has 1862 states and 2006 transitions. [2020-10-12 13:54:21,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:54:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2006 transitions. [2020-10-12 13:54:21,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-10-12 13:54:21,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:21,233 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:21,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:54:21,234 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:21,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:21,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1108847630, now seen corresponding path program 1 times [2020-10-12 13:54:21,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:21,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871367540] [2020-10-12 13:54:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:21,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:21,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:21,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:22,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:26,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:26,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 630 [2020-10-12 13:54:26,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:54:26,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-12 13:54:26,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:26,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:54:26,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 13:54:26,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 13:54:26,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:26,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:26,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:26,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:26,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:26,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:26,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:54:26,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:26,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:26,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:26,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:26,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:26,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:26,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:54:26,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:26,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:26,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:26,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:26,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:54:26,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:26,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:26,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:26,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:26,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:26,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:26,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 13:54:26,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 13:54:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:26,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:26,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:27,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:27,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:27,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:54:27,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 719 [2020-10-12 13:54:27,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:54:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:27,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 13:54:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:28,146 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-10-12 13:54:28,511 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2020-10-12 13:54:28,900 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2020-10-12 13:54:29,306 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2020-10-12 13:54:29,603 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2020-10-12 13:54:29,916 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 80 [2020-10-12 13:54:30,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-12 13:54:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:30,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:30,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:54:30,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:30,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:54:30,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:30,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:30,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 13:54:30,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:30,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 444 proven. 72 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2020-10-12 13:54:32,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871367540] [2020-10-12 13:54:32,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:32,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:54:32,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346853092] [2020-10-12 13:54:32,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:54:32,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:32,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:54:32,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:54:32,553 INFO L87 Difference]: Start difference. First operand 1862 states and 2006 transitions. Second operand 13 states. [2020-10-12 13:54:33,286 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2020-10-12 13:54:33,870 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2020-10-12 13:54:34,172 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2020-10-12 13:54:34,372 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2020-10-12 13:54:34,610 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2020-10-12 13:54:34,878 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 85 [2020-10-12 13:54:35,246 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 58 [2020-10-12 13:54:35,447 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 13:54:36,047 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2020-10-12 13:54:36,613 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2020-10-12 13:54:36,948 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 65 [2020-10-12 13:54:37,187 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 64 [2020-10-12 13:54:37,464 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 64 [2020-10-12 13:54:37,756 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 67 [2020-10-12 13:54:38,206 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-12 13:54:38,532 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 13:54:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:38,891 INFO L93 Difference]: Finished difference Result 3734 states and 4060 transitions. [2020-10-12 13:54:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:54:38,891 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 612 [2020-10-12 13:54:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:38,902 INFO L225 Difference]: With dead ends: 3734 [2020-10-12 13:54:38,902 INFO L226 Difference]: Without dead ends: 2194 [2020-10-12 13:54:38,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:54:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2020-10-12 13:54:38,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2106. [2020-10-12 13:54:38,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2106 states. [2020-10-12 13:54:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2261 transitions. [2020-10-12 13:54:38,966 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2261 transitions. Word has length 612 [2020-10-12 13:54:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:38,967 INFO L479 AbstractCegarLoop]: Abstraction has 2106 states and 2261 transitions. [2020-10-12 13:54:38,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:54:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2261 transitions. [2020-10-12 13:54:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-10-12 13:54:38,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:38,975 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 13:54:38,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:54:38,976 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash 2074706393, now seen corresponding path program 1 times [2020-10-12 13:54:38,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:38,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875039008] [2020-10-12 13:54:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:39,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 653 [2020-10-12 13:54:41,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2333 [2020-10-12 13:54:41,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:54:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 627 [2020-10-12 13:54:41,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 13:54:41,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:41,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:41,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:41,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:41,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:54:41,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:41,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:41,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:41,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:54:41,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:54:41,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:41,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:41,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:54:41,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:41,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:41,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:41,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:41,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:41,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:54:41,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:41,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:41,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:41,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:41,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:54:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:41,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:41,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 13:54:41,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 102 proven. 5 refuted. 0 times theorem prover too weak. 1099 trivial. 0 not checked. [2020-10-12 13:54:42,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875039008] [2020-10-12 13:54:42,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:42,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:54:42,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818042616] [2020-10-12 13:54:42,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:54:42,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:42,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:54:42,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:54:42,040 INFO L87 Difference]: Start difference. First operand 2106 states and 2261 transitions. Second operand 5 states. [2020-10-12 13:54:43,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:43,206 INFO L93 Difference]: Finished difference Result 4402 states and 4839 transitions. [2020-10-12 13:54:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:54:43,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 635 [2020-10-12 13:54:43,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:43,217 INFO L225 Difference]: With dead ends: 4402 [2020-10-12 13:54:43,217 INFO L226 Difference]: Without dead ends: 2668 [2020-10-12 13:54:43,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:54:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-10-12 13:54:43,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2668. [2020-10-12 13:54:43,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2668 states. [2020-10-12 13:54:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 2891 transitions. [2020-10-12 13:54:43,315 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 2891 transitions. Word has length 635 [2020-10-12 13:54:43,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:43,316 INFO L479 AbstractCegarLoop]: Abstraction has 2668 states and 2891 transitions. [2020-10-12 13:54:43,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:54:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 2891 transitions. [2020-10-12 13:54:43,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2020-10-12 13:54:43,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:43,325 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:43,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:54:43,325 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:43,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:43,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1123799850, now seen corresponding path program 1 times [2020-10-12 13:54:43,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:43,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923209677] [2020-10-12 13:54:43,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:43,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:43,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:46,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 718 [2020-10-12 13:54:46,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:54:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3567 [2020-10-12 13:54:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:54:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 13:54:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 13:54:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:54:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:54:47,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:54:47,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:54:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:54:47,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:54:47,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:54:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:54:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:54:47,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:54:47,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:54:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:54:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:54:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:54:47,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:54:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 13:54:47,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:54:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:54:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:54:47,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:47,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:54:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:47,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:54:47,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:54:47,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:54:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-12 13:54:47,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:54:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:54:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:54:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:54:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:54:48,172 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-10-12 13:54:48,300 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-10-12 13:54:48,438 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2020-10-12 13:54:48,572 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-12 13:54:48,707 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 13:54:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 593 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-12 13:54:50,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923209677] [2020-10-12 13:54:50,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:54:50,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:54:50,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643163181] [2020-10-12 13:54:50,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:54:50,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:54:50,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:54:50,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:54:50,299 INFO L87 Difference]: Start difference. First operand 2668 states and 2891 transitions. Second operand 13 states. [2020-10-12 13:54:50,907 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-12 13:54:51,378 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2020-10-12 13:54:51,661 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-12 13:54:51,887 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 13:54:52,097 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 13:54:52,400 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-12 13:54:52,702 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-10-12 13:54:53,575 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2020-10-12 13:54:54,268 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 13:54:54,513 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-12 13:54:54,690 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2020-10-12 13:54:54,957 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-12 13:54:55,220 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 67 [2020-10-12 13:54:55,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:54:55,732 INFO L93 Difference]: Finished difference Result 5154 states and 5611 transitions. [2020-10-12 13:54:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:54:55,738 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 700 [2020-10-12 13:54:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:54:55,748 INFO L225 Difference]: With dead ends: 5154 [2020-10-12 13:54:55,748 INFO L226 Difference]: Without dead ends: 2847 [2020-10-12 13:54:55,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:54:55,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2020-10-12 13:54:55,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2843. [2020-10-12 13:54:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2843 states. [2020-10-12 13:54:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3070 transitions. [2020-10-12 13:54:55,810 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3070 transitions. Word has length 700 [2020-10-12 13:54:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:54:55,812 INFO L479 AbstractCegarLoop]: Abstraction has 2843 states and 3070 transitions. [2020-10-12 13:54:55,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:54:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3070 transitions. [2020-10-12 13:54:55,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2020-10-12 13:54:55,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:54:55,822 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:54:55,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 13:54:55,822 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:54:55,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:54:55,823 INFO L82 PathProgramCache]: Analyzing trace with hash -631210166, now seen corresponding path program 1 times [2020-10-12 13:54:55,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:54:55,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671221677] [2020-10-12 13:54:55,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:54:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:54:56,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:56,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:54:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:00,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 798 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 687 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 13:55:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:01,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:55:01,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:01,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:01,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:01,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:01,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:55:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:01,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 13:55:01,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:01,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:01,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:01,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 13:55:01,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:55:01,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 13:55:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:01,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 675 [2020-10-12 13:55:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:01,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 13:55:01,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:55:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 13:55:01,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 626 proven. 2 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2020-10-12 13:55:02,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671221677] [2020-10-12 13:55:02,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:02,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 13:55:02,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98035548] [2020-10-12 13:55:02,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 13:55:02,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:02,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 13:55:02,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:55:02,230 INFO L87 Difference]: Start difference. First operand 2843 states and 3070 transitions. Second operand 10 states. [2020-10-12 13:55:04,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:04,177 INFO L93 Difference]: Finished difference Result 5425 states and 5893 transitions. [2020-10-12 13:55:04,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 13:55:04,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 776 [2020-10-12 13:55:04,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:04,189 INFO L225 Difference]: With dead ends: 5425 [2020-10-12 13:55:04,189 INFO L226 Difference]: Without dead ends: 2896 [2020-10-12 13:55:04,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-10-12 13:55:04,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2020-10-12 13:55:04,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2841. [2020-10-12 13:55:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2841 states. [2020-10-12 13:55:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3039 transitions. [2020-10-12 13:55:04,268 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3039 transitions. Word has length 776 [2020-10-12 13:55:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:04,268 INFO L479 AbstractCegarLoop]: Abstraction has 2841 states and 3039 transitions. [2020-10-12 13:55:04,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 13:55:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3039 transitions. [2020-10-12 13:55:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-10-12 13:55:04,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:04,278 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-10-12 13:55:04,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 13:55:04,279 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1973258374, now seen corresponding path program 1 times [2020-10-12 13:55:04,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:04,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860173723] [2020-10-12 13:55:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:04,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 819 [2020-10-12 13:55:08,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:55:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3776 [2020-10-12 13:55:08,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:55:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-12 13:55:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 13:55:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:08,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:08,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:08,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:55:08,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:08,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:08,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:08,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:08,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:08,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:08,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 13:55:08,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:08,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:08,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:08,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:08,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:55:08,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:08,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:08,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:08,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 13:55:08,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:08,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:08,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:08,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:08,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:08,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:55:08,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:08,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:08,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:08,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:08,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:08,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:08,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-12 13:55:08,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:55:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:09,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:09,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:09,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:09,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:55:09,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-10-12 13:55:09,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:55:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:55:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:55:09,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:10,390 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2020-10-12 13:55:10,649 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2020-10-12 13:55:10,907 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-12 13:55:11,161 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 13:55:11,418 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 13:55:14,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 713 proven. 2 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2020-10-12 13:55:14,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860173723] [2020-10-12 13:55:14,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:14,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:55:14,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512299321] [2020-10-12 13:55:14,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:55:14,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:14,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:55:14,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:55:14,369 INFO L87 Difference]: Start difference. First operand 2841 states and 3039 transitions. Second operand 13 states. [2020-10-12 13:55:14,962 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2020-10-12 13:55:15,203 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2020-10-12 13:55:15,477 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2020-10-12 13:55:15,691 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2020-10-12 13:55:16,081 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2020-10-12 13:55:16,433 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 83 [2020-10-12 13:55:16,891 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-12 13:55:17,185 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-12 13:55:17,730 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 57 [2020-10-12 13:55:18,023 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 63 [2020-10-12 13:55:18,346 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 63 [2020-10-12 13:55:18,602 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 62 [2020-10-12 13:55:19,018 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 62 [2020-10-12 13:55:19,387 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 66 [2020-10-12 13:55:19,736 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-12 13:55:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:20,038 INFO L93 Difference]: Finished difference Result 5500 states and 5916 transitions. [2020-10-12 13:55:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 13:55:20,038 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 799 [2020-10-12 13:55:20,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:20,049 INFO L225 Difference]: With dead ends: 5500 [2020-10-12 13:55:20,049 INFO L226 Difference]: Without dead ends: 2923 [2020-10-12 13:55:20,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 13:55:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2020-10-12 13:55:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2915. [2020-10-12 13:55:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2915 states. [2020-10-12 13:55:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 3114 transitions. [2020-10-12 13:55:20,107 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 3114 transitions. Word has length 799 [2020-10-12 13:55:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:20,108 INFO L479 AbstractCegarLoop]: Abstraction has 2915 states and 3114 transitions. [2020-10-12 13:55:20,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:55:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 3114 transitions. [2020-10-12 13:55:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2020-10-12 13:55:20,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:20,120 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:55:20,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 13:55:20,120 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:20,121 INFO L82 PathProgramCache]: Analyzing trace with hash 345918991, now seen corresponding path program 1 times [2020-10-12 13:55:20,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:20,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410157455] [2020-10-12 13:55:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:20,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 897 [2020-10-12 13:55:21,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 846 [2020-10-12 13:55:21,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 13:55:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 13:55:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:21,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:55:21,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:21,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:55:21,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:55:21,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:55:21,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:21,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:21,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:21,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:55:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:21,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:21,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:21,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:21,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 13:55:21,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:21,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 13:55:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2171 backedges. 144 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-12 13:55:22,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410157455] [2020-10-12 13:55:22,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:22,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:55:22,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603851925] [2020-10-12 13:55:22,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:55:22,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:22,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:55:22,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:55:22,536 INFO L87 Difference]: Start difference. First operand 2915 states and 3114 transitions. Second operand 5 states. [2020-10-12 13:55:23,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:23,613 INFO L93 Difference]: Finished difference Result 6018 states and 6569 transitions. [2020-10-12 13:55:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:55:23,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 875 [2020-10-12 13:55:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:23,626 INFO L225 Difference]: With dead ends: 6018 [2020-10-12 13:55:23,626 INFO L226 Difference]: Without dead ends: 3475 [2020-10-12 13:55:23,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:55:23,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2020-10-12 13:55:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3471. [2020-10-12 13:55:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3471 states. [2020-10-12 13:55:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 3791 transitions. [2020-10-12 13:55:23,694 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 3791 transitions. Word has length 875 [2020-10-12 13:55:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:23,695 INFO L479 AbstractCegarLoop]: Abstraction has 3471 states and 3791 transitions. [2020-10-12 13:55:23,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:55:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 3791 transitions. [2020-10-12 13:55:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2020-10-12 13:55:23,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:23,709 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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 13:55:23,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 13:55:23,709 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:23,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:23,710 INFO L82 PathProgramCache]: Analyzing trace with hash 901706590, now seen corresponding path program 1 times [2020-10-12 13:55:23,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:23,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037054603] [2020-10-12 13:55:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:24,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:24,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 979 [2020-10-12 13:55:27,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:55:27,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3450 [2020-10-12 13:55:27,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:55:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:55:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 288 [2020-10-12 13:55:27,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:27,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:55:27,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:27,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:27,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:55:27,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:27,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:27,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:55:27,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:27,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:27,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:27,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:55:27,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:27,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:55:27,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:27,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:27,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:55:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:55:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:27,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:27,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:27,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 13:55:27,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:55:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:55:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:55:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:27,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:55:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:28,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:28,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:28,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:28,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 13:55:28,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:55:28,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 13:55:28,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:55:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:55:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2746 backedges. 1259 proven. 44 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-12 13:55:28,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037054603] [2020-10-12 13:55:28,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:28,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:55:28,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120394774] [2020-10-12 13:55:28,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:55:28,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:28,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:55:28,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:55:28,520 INFO L87 Difference]: Start difference. First operand 3471 states and 3791 transitions. Second operand 9 states. [2020-10-12 13:55:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:31,021 INFO L93 Difference]: Finished difference Result 7698 states and 8651 transitions. [2020-10-12 13:55:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 13:55:31,021 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 955 [2020-10-12 13:55:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:31,036 INFO L225 Difference]: With dead ends: 7698 [2020-10-12 13:55:31,036 INFO L226 Difference]: Without dead ends: 4599 [2020-10-12 13:55:31,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 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 13:55:31,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4599 states. [2020-10-12 13:55:31,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4599 to 4587. [2020-10-12 13:55:31,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4587 states. [2020-10-12 13:55:31,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4587 states to 4587 states and 5176 transitions. [2020-10-12 13:55:31,120 INFO L78 Accepts]: Start accepts. Automaton has 4587 states and 5176 transitions. Word has length 955 [2020-10-12 13:55:31,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:31,121 INFO L479 AbstractCegarLoop]: Abstraction has 4587 states and 5176 transitions. [2020-10-12 13:55:31,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:55:31,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4587 states and 5176 transitions. [2020-10-12 13:55:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2020-10-12 13:55:31,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:31,134 INFO L422 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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 13:55:31,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 13:55:31,135 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:31,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:31,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1063395947, now seen corresponding path program 1 times [2020-10-12 13:55:31,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:31,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691097809] [2020-10-12 13:55:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:31,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:33,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:35,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 982 [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4549 [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-12 13:55:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 13:55:35,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:35,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:35,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:35,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:35,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:55:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:35,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:35,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:35,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:35,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:35,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:35,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:35,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:36,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:55:36,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:36,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:36,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:36,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:36,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:55:36,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:36,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:55:36,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:55:36,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:36,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:55:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:36,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:36,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:55:36,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:36,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:55:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:36,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:36,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 13:55:36,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 165 proven. 8 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 13:55:36,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691097809] [2020-10-12 13:55:36,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:36,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:55:36,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998164012] [2020-10-12 13:55:36,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:55:36,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:36,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:55:36,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:55:36,671 INFO L87 Difference]: Start difference. First operand 4587 states and 5176 transitions. Second operand 5 states. [2020-10-12 13:55:37,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:37,788 INFO L93 Difference]: Finished difference Result 9362 states and 10775 transitions. [2020-10-12 13:55:37,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:55:37,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 958 [2020-10-12 13:55:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:37,800 INFO L225 Difference]: With dead ends: 9362 [2020-10-12 13:55:37,800 INFO L226 Difference]: Without dead ends: 4587 [2020-10-12 13:55:37,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:55:37,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4587 states. [2020-10-12 13:55:37,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4587 to 4581. [2020-10-12 13:55:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4581 states. [2020-10-12 13:55:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 5103 transitions. [2020-10-12 13:55:37,892 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 5103 transitions. Word has length 958 [2020-10-12 13:55:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:37,893 INFO L479 AbstractCegarLoop]: Abstraction has 4581 states and 5103 transitions. [2020-10-12 13:55:37,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:55:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 5103 transitions. [2020-10-12 13:55:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2020-10-12 13:55:37,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:37,911 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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, 1] [2020-10-12 13:55:37,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 13:55:37,912 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:37,912 INFO L82 PathProgramCache]: Analyzing trace with hash -581935481, now seen corresponding path program 1 times [2020-10-12 13:55:37,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:37,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996121149] [2020-10-12 13:55:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:38,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:38,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:39,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:40,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1095 [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1069 [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 13:55:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:43,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:55:43,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:43,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:43,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:43,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:43,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:55:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 13:55:43,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:55:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:55:43,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 13:55:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:43,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 13:55:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:43,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:43,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:43,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 13:55:43,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:43,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 13:55:43,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-12 13:55:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3588 backedges. 186 proven. 9 refuted. 0 times theorem prover too weak. 3393 trivial. 0 not checked. [2020-10-12 13:55:44,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996121149] [2020-10-12 13:55:44,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:44,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:55:44,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584397167] [2020-10-12 13:55:44,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:55:44,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:44,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:55:44,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:55:44,188 INFO L87 Difference]: Start difference. First operand 4581 states and 5103 transitions. Second operand 5 states. [2020-10-12 13:55:45,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:45,213 INFO L93 Difference]: Finished difference Result 9712 states and 10970 transitions. [2020-10-12 13:55:45,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:55:45,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1069 [2020-10-12 13:55:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:45,233 INFO L225 Difference]: With dead ends: 9712 [2020-10-12 13:55:45,233 INFO L226 Difference]: Without dead ends: 5503 [2020-10-12 13:55:45,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:55:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-10-12 13:55:45,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5311. [2020-10-12 13:55:45,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5311 states. [2020-10-12 13:55:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 5978 transitions. [2020-10-12 13:55:45,326 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 5978 transitions. Word has length 1069 [2020-10-12 13:55:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:45,327 INFO L479 AbstractCegarLoop]: Abstraction has 5311 states and 5978 transitions. [2020-10-12 13:55:45,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:55:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 5978 transitions. [2020-10-12 13:55:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2020-10-12 13:55:45,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:45,343 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:55:45,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 13:55:45,343 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:45,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:45,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1880588863, now seen corresponding path program 1 times [2020-10-12 13:55:45,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:45,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425207827] [2020-10-12 13:55:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:45,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:46,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1099 [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3502 [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1073 [2020-10-12 13:55:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 13:55:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:49,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:55:49,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:49,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:49,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:49,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:49,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:55:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:55:49,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:55:49,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:55:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:55:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:55:49,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:55:49,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:49,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:49,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 13:55:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:49,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:49,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 13:55:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3594 backedges. 186 proven. 9 refuted. 0 times theorem prover too weak. 3399 trivial. 0 not checked. [2020-10-12 13:55:50,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425207827] [2020-10-12 13:55:50,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:50,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:55:50,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303017581] [2020-10-12 13:55:50,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:55:50,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:50,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:55:50,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:55:50,036 INFO L87 Difference]: Start difference. First operand 5311 states and 5978 transitions. Second operand 5 states. [2020-10-12 13:55:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:51,030 INFO L93 Difference]: Finished difference Result 6053 states and 6903 transitions. [2020-10-12 13:55:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:55:51,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1073 [2020-10-12 13:55:51,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:51,046 INFO L225 Difference]: With dead ends: 6053 [2020-10-12 13:55:51,046 INFO L226 Difference]: Without dead ends: 6051 [2020-10-12 13:55:51,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:55:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2020-10-12 13:55:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 5497. [2020-10-12 13:55:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5497 states. [2020-10-12 13:55:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6241 transitions. [2020-10-12 13:55:51,149 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6241 transitions. Word has length 1073 [2020-10-12 13:55:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:51,151 INFO L479 AbstractCegarLoop]: Abstraction has 5497 states and 6241 transitions. [2020-10-12 13:55:51,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:55:51,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6241 transitions. [2020-10-12 13:55:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2020-10-12 13:55:51,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:51,176 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-12 13:55:51,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 13:55:51,177 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:51,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1655433051, now seen corresponding path program 1 times [2020-10-12 13:55:51,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:51,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805445343] [2020-10-12 13:55:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:51,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:51,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:54,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:54,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1165 [2020-10-12 13:55:54,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:55:54,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3401 [2020-10-12 13:55:54,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:54,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:54,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-12 13:55:54,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 13:55:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:55:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:54,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:55:54,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:54,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:55:54,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:54,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:55:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:54,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:54,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:54,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:55:54,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 13:55:54,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:54,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:55:55,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:55:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:55:55,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:55:55,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:55:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:55:55,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:55:55,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:55,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:55,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:55:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:55:55,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:55:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:55,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:55:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:55,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:55:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:55:55,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:55:55,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:55,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:55:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:55:55,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:55:55,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:55:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:55:55,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:55:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 13:55:55,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:55:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 13:55:55,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:55:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:55:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 13:55:55,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:55,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 13:55:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:55,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:55:55,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:55:55,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:55:55,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-12 13:55:55,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:55:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:55:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:55:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-12 13:55:55,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:55:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3767 backedges. 1108 proven. 2 refuted. 0 times theorem prover too weak. 2657 trivial. 0 not checked. [2020-10-12 13:55:56,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805445343] [2020-10-12 13:55:56,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:55:56,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:55:56,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339826544] [2020-10-12 13:55:56,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:55:56,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:55:56,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:55:56,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:55:56,401 INFO L87 Difference]: Start difference. First operand 5497 states and 6241 transitions. Second operand 7 states. [2020-10-12 13:55:57,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:55:57,418 INFO L93 Difference]: Finished difference Result 10497 states and 12011 transitions. [2020-10-12 13:55:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:55:57,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1139 [2020-10-12 13:55:57,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:55:57,437 INFO L225 Difference]: With dead ends: 10497 [2020-10-12 13:55:57,437 INFO L226 Difference]: Without dead ends: 5359 [2020-10-12 13:55:57,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:55:57,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5359 states. [2020-10-12 13:55:57,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5359 to 5313. [2020-10-12 13:55:57,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5313 states. [2020-10-12 13:55:57,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 5996 transitions. [2020-10-12 13:55:57,553 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 5996 transitions. Word has length 1139 [2020-10-12 13:55:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:55:57,554 INFO L479 AbstractCegarLoop]: Abstraction has 5313 states and 5996 transitions. [2020-10-12 13:55:57,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:55:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 5996 transitions. [2020-10-12 13:55:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2020-10-12 13:55:57,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:55:57,582 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 13:55:57,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 13:55:57,583 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:55:57,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:55:57,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1694179994, now seen corresponding path program 1 times [2020-10-12 13:55:57,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:55:57,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753634882] [2020-10-12 13:55:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:55:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:55:57,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:55:58,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:02,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1182 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5143 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 13:56:02,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:03,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:56:03,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:56:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:56:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:56:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:56:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:56:03,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 13:56:03,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:03,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:56:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 13:56:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:03,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 13:56:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:03,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:56:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-12 13:56:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:56:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-12 13:56:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:04,399 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2020-10-12 13:56:04,581 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 13:56:04,792 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 13:56:05,010 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-10-12 13:56:05,253 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-10-12 13:56:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 1125 proven. 2 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-12 13:56:07,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753634882] [2020-10-12 13:56:07,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:07,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:56:07,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780684200] [2020-10-12 13:56:07,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:56:07,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:07,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:56:07,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:56:07,727 INFO L87 Difference]: Start difference. First operand 5313 states and 5996 transitions. Second operand 13 states. [2020-10-12 13:56:08,386 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-12 13:56:08,622 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2020-10-12 13:56:08,881 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 13:56:09,060 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 13:56:09,327 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-12 13:56:09,543 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2020-10-12 13:56:09,797 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2020-10-12 13:56:10,226 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-10-12 13:56:11,131 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 13:56:11,489 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-12 13:56:11,719 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 13:56:12,035 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-10-12 13:56:12,295 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-10-12 13:56:12,570 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 70 [2020-10-12 13:56:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:12,790 INFO L93 Difference]: Finished difference Result 10456 states and 11884 transitions. [2020-10-12 13:56:12,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 13:56:12,791 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1156 [2020-10-12 13:56:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:12,808 INFO L225 Difference]: With dead ends: 10456 [2020-10-12 13:56:12,808 INFO L226 Difference]: Without dead ends: 5482 [2020-10-12 13:56:12,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-12 13:56:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5482 states. [2020-10-12 13:56:12,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 5468. [2020-10-12 13:56:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5468 states. [2020-10-12 13:56:12,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 6162 transitions. [2020-10-12 13:56:12,933 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 6162 transitions. Word has length 1156 [2020-10-12 13:56:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:12,935 INFO L479 AbstractCegarLoop]: Abstraction has 5468 states and 6162 transitions. [2020-10-12 13:56:12,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:56:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 6162 transitions. [2020-10-12 13:56:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2020-10-12 13:56:12,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:12,967 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:12,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 13:56:12,967 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:12,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:12,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1482766130, now seen corresponding path program 1 times [2020-10-12 13:56:12,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:12,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447660481] [2020-10-12 13:56:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:13,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:13,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:13,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:17,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1199 [2020-10-12 13:56:18,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:56:18,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-12 13:56:18,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 13:56:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 821 [2020-10-12 13:56:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 13:56:18,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:18,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:56:18,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:18,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:56:18,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:18,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:18,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:18,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:18,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:56:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 13:56:18,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 13:56:18,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:18,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 13:56:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 13:56:18,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 13:56:18,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-12 13:56:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:18,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 13:56:18,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:18,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 13:56:18,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 13:56:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2020-10-12 13:56:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:19,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:19,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:19,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:56:19,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:19,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-12 13:56:19,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:56:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:56:19,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:19,672 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2020-10-12 13:56:19,898 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 13:56:20,126 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-12 13:56:20,352 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2020-10-12 13:56:20,597 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-10-12 13:56:20,849 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-12 13:56:21,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 988 [2020-10-12 13:56:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:21,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:21,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:56:21,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:21,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 13:56:21,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-12 13:56:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3680 backedges. 984 proven. 168 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2020-10-12 13:56:25,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447660481] [2020-10-12 13:56:25,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:25,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 13:56:25,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485628616] [2020-10-12 13:56:25,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 13:56:25,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:25,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 13:56:25,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 13:56:25,115 INFO L87 Difference]: Start difference. First operand 5468 states and 6162 transitions. Second operand 13 states. [2020-10-12 13:56:25,861 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-12 13:56:26,099 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-12 13:56:26,508 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 13:56:26,733 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-10-12 13:56:27,025 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-12 13:56:27,365 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-10-12 13:56:27,691 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2020-10-12 13:56:28,069 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-12 13:56:28,469 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-10-12 13:56:28,817 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2020-10-12 13:56:29,326 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-10-12 13:56:29,603 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2020-10-12 13:56:29,980 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-12 13:56:30,307 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-12 13:56:30,672 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2020-10-12 13:56:31,035 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 67 [2020-10-12 13:56:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:31,453 INFO L93 Difference]: Finished difference Result 10572 states and 11963 transitions. [2020-10-12 13:56:31,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 13:56:31,457 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1175 [2020-10-12 13:56:31,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:31,476 INFO L225 Difference]: With dead ends: 10572 [2020-10-12 13:56:31,477 INFO L226 Difference]: Without dead ends: 5288 [2020-10-12 13:56:31,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2020-10-12 13:56:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5288 states. [2020-10-12 13:56:31,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5288 to 5282. [2020-10-12 13:56:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5282 states. [2020-10-12 13:56:31,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 5908 transitions. [2020-10-12 13:56:31,568 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 5908 transitions. Word has length 1175 [2020-10-12 13:56:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:31,569 INFO L479 AbstractCegarLoop]: Abstraction has 5282 states and 5908 transitions. [2020-10-12 13:56:31,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 13:56:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 5908 transitions. [2020-10-12 13:56:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1185 [2020-10-12 13:56:31,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:31,590 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 3, 3, 3, 3, 3, 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] [2020-10-12 13:56:31,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 13:56:31,590 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:31,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:31,591 INFO L82 PathProgramCache]: Analyzing trace with hash -2088733806, now seen corresponding path program 1 times [2020-10-12 13:56:31,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:31,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124074047] [2020-10-12 13:56:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:31,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:32,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:34,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:36,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1210 [2020-10-12 13:56:36,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:56:36,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 13:56:36,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 13:56:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:56:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-12 13:56:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:37,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:56:37,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:56:37,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:37,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:56:37,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:37,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:56:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:56:37,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:56:37,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:56:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:37,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:56:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:56:37,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 13:56:37,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:56:37,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:56:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:37,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:56:37,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-12 13:56:37,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:56:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:56:37,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:56:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:37,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:37,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:38,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:38,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 13:56:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:38,268 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-10-12 13:56:38,413 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-10-12 13:56:38,581 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-10-12 13:56:38,770 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-10-12 13:56:38,951 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-10-12 13:56:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-12 13:56:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:39,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:39,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:56:39,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 13:56:39,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-12 13:56:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 1568 proven. 377 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2020-10-12 13:56:41,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124074047] [2020-10-12 13:56:41,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:41,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 13:56:41,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883772038] [2020-10-12 13:56:41,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 13:56:41,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:41,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 13:56:41,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 13:56:41,449 INFO L87 Difference]: Start difference. First operand 5282 states and 5908 transitions. Second operand 16 states. [2020-10-12 13:56:42,174 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-12 13:56:42,356 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-12 13:56:42,671 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-12 13:56:42,915 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-12 13:56:43,135 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2020-10-12 13:56:43,419 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2020-10-12 13:56:43,646 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-10-12 13:56:44,129 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2020-10-12 13:56:44,451 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-10-12 13:56:44,789 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-12 13:56:44,941 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-12 13:56:45,159 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-10-12 13:56:45,356 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-10-12 13:56:45,570 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2020-10-12 13:56:45,795 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-10-12 13:56:46,818 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-10-12 13:56:47,007 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 13:56:47,346 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-12 13:56:47,605 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-12 13:56:47,868 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-12 13:56:48,107 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2020-10-12 13:56:48,676 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-12 13:56:49,061 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-10-12 13:56:49,503 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-10-12 13:56:49,915 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-10-12 13:56:49,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:49,955 INFO L93 Difference]: Finished difference Result 10384 states and 11657 transitions. [2020-10-12 13:56:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-12 13:56:49,957 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1184 [2020-10-12 13:56:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:49,965 INFO L225 Difference]: With dead ends: 10384 [2020-10-12 13:56:49,965 INFO L226 Difference]: Without dead ends: 5408 [2020-10-12 13:56:49,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=594, Invalid=2058, Unknown=0, NotChecked=0, Total=2652 [2020-10-12 13:56:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2020-10-12 13:56:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 5400. [2020-10-12 13:56:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5400 states. [2020-10-12 13:56:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 6027 transitions. [2020-10-12 13:56:50,047 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 6027 transitions. Word has length 1184 [2020-10-12 13:56:50,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:50,048 INFO L479 AbstractCegarLoop]: Abstraction has 5400 states and 6027 transitions. [2020-10-12 13:56:50,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 13:56:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 6027 transitions. [2020-10-12 13:56:50,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1303 [2020-10-12 13:56:50,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:50,072 INFO L422 BasicCegarLoop]: trace histogram [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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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 13:56:50,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 13:56:50,073 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:50,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1310028849, now seen corresponding path program 1 times [2020-10-12 13:56:50,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:50,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039673083] [2020-10-12 13:56:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:50,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1330 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 13:56:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:56:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:56:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:56:51,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:56:51,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:56:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:56:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:56:51,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:56:51,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:56:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:56:51,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:56:51,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:56:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:56:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:56:51,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:56:51,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:56:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:56:51,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:56:51,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:51,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:56:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:51,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:51,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:56:51,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:51,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 13:56:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:56:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:56:51,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:56:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:56:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:52,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:52,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:52,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:56:52,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 13:56:52,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:56:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:56:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:56:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:52,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:56:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:52,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:52,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:56:52,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:56:52,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:56:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 13:56:52,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:56:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:56:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:56:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-12 13:56:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:56:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4937 backedges. 1292 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-12 13:56:53,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039673083] [2020-10-12 13:56:53,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:56:53,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:56:53,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408885336] [2020-10-12 13:56:53,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:56:53,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:56:53,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:56:53,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:56:53,085 INFO L87 Difference]: Start difference. First operand 5400 states and 6027 transitions. Second operand 7 states. [2020-10-12 13:56:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:56:54,665 INFO L93 Difference]: Finished difference Result 11534 states and 13149 transitions. [2020-10-12 13:56:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:56:54,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1302 [2020-10-12 13:56:54,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:56:54,675 INFO L225 Difference]: With dead ends: 11534 [2020-10-12 13:56:54,676 INFO L226 Difference]: Without dead ends: 6506 [2020-10-12 13:56:54,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 13:56:54,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6506 states. [2020-10-12 13:56:54,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6506 to 6506. [2020-10-12 13:56:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6506 states. [2020-10-12 13:56:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 7289 transitions. [2020-10-12 13:56:54,769 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 7289 transitions. Word has length 1302 [2020-10-12 13:56:54,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:56:54,770 INFO L479 AbstractCegarLoop]: Abstraction has 6506 states and 7289 transitions. [2020-10-12 13:56:54,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:56:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 7289 transitions. [2020-10-12 13:56:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1372 [2020-10-12 13:56:54,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:56:54,798 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:56:54,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 13:56:54,798 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:56:54,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:56:54,799 INFO L82 PathProgramCache]: Analyzing trace with hash -263656983, now seen corresponding path program 1 times [2020-10-12 13:56:54,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:56:54,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994347612] [2020-10-12 13:56:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:56:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:56:55,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:56:56,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1401 [2020-10-12 13:57:00,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:57:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-12 13:57:00,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 13:57:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 13:57:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 434 [2020-10-12 13:57:00,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:00,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:57:00,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:00,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:57:00,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:00,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:00,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:57:00,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:00,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:00,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:57:00,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:57:00,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:57:00,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:00,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:00,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:57:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:57:00,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 13:57:00,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:57:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:00,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:00,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:57:00,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:00,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 13:57:00,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 13:57:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:00,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:57:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 13:57:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:57:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:57:01,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 13:57:01,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:57:01,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:57:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-12 13:57:01,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 13:57:01,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 13:57:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-12 13:57:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 13:57:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-12 13:57:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:01,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:01,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:01,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:57:01,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 13:57:01,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-12 13:57:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5713 backedges. 2176 proven. 985 refuted. 0 times theorem prover too weak. 2552 trivial. 0 not checked. [2020-10-12 13:57:03,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994347612] [2020-10-12 13:57:03,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:03,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 13:57:03,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706253516] [2020-10-12 13:57:03,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 13:57:03,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 13:57:03,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:57:03,478 INFO L87 Difference]: Start difference. First operand 6506 states and 7289 transitions. Second operand 11 states. [2020-10-12 13:57:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:06,342 INFO L93 Difference]: Finished difference Result 12644 states and 14215 transitions. [2020-10-12 13:57:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 13:57:06,343 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1371 [2020-10-12 13:57:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:06,353 INFO L225 Difference]: With dead ends: 12644 [2020-10-12 13:57:06,353 INFO L226 Difference]: Without dead ends: 6510 [2020-10-12 13:57:06,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-12 13:57:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6510 states. [2020-10-12 13:57:06,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6510 to 6506. [2020-10-12 13:57:06,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6506 states. [2020-10-12 13:57:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 7281 transitions. [2020-10-12 13:57:06,458 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 7281 transitions. Word has length 1371 [2020-10-12 13:57:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:06,459 INFO L479 AbstractCegarLoop]: Abstraction has 6506 states and 7281 transitions. [2020-10-12 13:57:06,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 13:57:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 7281 transitions. [2020-10-12 13:57:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1407 [2020-10-12 13:57:06,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:06,484 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:06,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 13:57:06,485 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:06,486 INFO L82 PathProgramCache]: Analyzing trace with hash -386161392, now seen corresponding path program 1 times [2020-10-12 13:57:06,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:06,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355232824] [2020-10-12 13:57:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:06,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:07,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:09,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1436 [2020-10-12 13:57:11,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:57:11,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 13:57:11,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:57:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:57:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-12 13:57:11,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:11,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:57:11,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:11,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:11,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:11,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:11,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:11,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:11,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:11,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:11,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:57:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:12,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:57:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:57:12,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:57:12,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:12,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:12,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:57:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:12,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:57:12,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:12,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:12,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:12,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:57:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:57:12,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 13:57:12,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:57:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:57:12,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 13:57:12,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:57:12,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:57:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 13:57:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:57:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 13:57:12,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 13:57:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:12,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1219 [2020-10-12 13:57:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:12,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:12,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:57:12,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:12,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 13:57:12,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:12,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-12 13:57:12,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5945 backedges. 2185 proven. 4 refuted. 0 times theorem prover too weak. 3756 trivial. 0 not checked. [2020-10-12 13:57:13,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355232824] [2020-10-12 13:57:13,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:13,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:57:13,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617093398] [2020-10-12 13:57:13,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:57:13,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:13,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:57:13,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:57:13,638 INFO L87 Difference]: Start difference. First operand 6506 states and 7281 transitions. Second operand 7 states. [2020-10-12 13:57:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:14,937 INFO L93 Difference]: Finished difference Result 13535 states and 15209 transitions. [2020-10-12 13:57:14,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:57:14,937 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1406 [2020-10-12 13:57:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:14,949 INFO L225 Difference]: With dead ends: 13535 [2020-10-12 13:57:14,950 INFO L226 Difference]: Without dead ends: 7401 [2020-10-12 13:57:14,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 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 13:57:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2020-10-12 13:57:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7319. [2020-10-12 13:57:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7319 states. [2020-10-12 13:57:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7319 states to 7319 states and 8162 transitions. [2020-10-12 13:57:15,051 INFO L78 Accepts]: Start accepts. Automaton has 7319 states and 8162 transitions. Word has length 1406 [2020-10-12 13:57:15,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:15,053 INFO L479 AbstractCegarLoop]: Abstraction has 7319 states and 8162 transitions. [2020-10-12 13:57:15,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:57:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7319 states and 8162 transitions. [2020-10-12 13:57:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1532 [2020-10-12 13:57:15,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:15,085 INFO L422 BasicCegarLoop]: trace histogram [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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 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, 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 13:57:15,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 13:57:15,085 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:15,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:15,086 INFO L82 PathProgramCache]: Analyzing trace with hash -428167720, now seen corresponding path program 1 times [2020-10-12 13:57:15,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:15,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469681887] [2020-10-12 13:57:15,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:15,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:15,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:16,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1563 [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-12 13:57:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:57:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:57:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 13:57:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:20,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 13:57:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 13:57:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:57:20,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 13:57:20,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 13:57:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 13:57:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 13:57:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 13:57:20,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:57:20,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 13:57:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 13:57:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:20,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 13:57:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:20,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 13:57:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 13:57:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:20,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:21,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:21,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 13:57:21,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 13:57:21,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:57:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:57:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 13:57:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:21,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 13:57:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:21,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:21,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:21,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 13:57:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 13:57:21,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-12 13:57:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344 [2020-10-12 13:57:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:21,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:57:21,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:57:21,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-12 13:57:21,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:57:21,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 13:57:21,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:57:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:57:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-12 13:57:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:57:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:57:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7211 backedges. 1278 proven. 225 refuted. 0 times theorem prover too weak. 5708 trivial. 0 not checked. [2020-10-12 13:57:22,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469681887] [2020-10-12 13:57:22,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:57:22,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:57:22,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687204534] [2020-10-12 13:57:22,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:57:22,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:57:22,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:57:22,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:57:22,144 INFO L87 Difference]: Start difference. First operand 7319 states and 8162 transitions. Second operand 7 states. [2020-10-12 13:57:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:57:24,363 INFO L93 Difference]: Finished difference Result 16156 states and 18153 transitions. [2020-10-12 13:57:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 13:57:24,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1531 [2020-10-12 13:57:24,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:57:24,381 INFO L225 Difference]: With dead ends: 16156 [2020-10-12 13:57:24,382 INFO L226 Difference]: Without dead ends: 9209 [2020-10-12 13:57:24,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 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 13:57:24,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9209 states. [2020-10-12 13:57:24,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9209 to 9129. [2020-10-12 13:57:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9129 states. [2020-10-12 13:57:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9129 states to 9129 states and 10218 transitions. [2020-10-12 13:57:24,530 INFO L78 Accepts]: Start accepts. Automaton has 9129 states and 10218 transitions. Word has length 1531 [2020-10-12 13:57:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:57:24,532 INFO L479 AbstractCegarLoop]: Abstraction has 9129 states and 10218 transitions. [2020-10-12 13:57:24,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:57:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9129 states and 10218 transitions. [2020-10-12 13:57:24,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1596 [2020-10-12 13:57:24,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:57:24,564 INFO L422 BasicCegarLoop]: trace histogram [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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:57:24,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 13:57:24,564 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:57:24,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:57:24,565 INFO L82 PathProgramCache]: Analyzing trace with hash 2136914264, now seen corresponding path program 1 times [2020-10-12 13:57:24,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:57:24,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293956964] [2020-10-12 13:57:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:57:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:57:25,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking...